Calculate the exact gestational age by day. From what day is pregnancy considered? How to calculate pregnancy by week

First trimester: 1-13 weeks

At the "start" after conception, an embryo is formed, but the signs are poorly felt by the mother. Details:

1 Week For pregnancy to occur, it is necessary to attach an egg that travels through the tubes to the wall of the uterus. The expectant mother feels the world deeper, becomes more thoughtful. Many women at this stage feel symptoms, as before menstruation - pulling the lower back, aching in the stomach. To determine the gestational age in weeks and calculate the date of delivery according to the last menstrual days use our pregnancy calculator. Try not to drink pills and eat right;
2 weeks- the follicle matures in the ovaries during ovulation, then it bursts, the egg comes out, becomes sensitive breasts, slightly increased irritability, but also increased libido. No saunas and baths during this period! No weight lifting! Only exercise, swimming, smoking cessation, orange juices and green vegetables rich in folic acid to help absorb iron! Taste habits change, you often want to go to the toilet, pressure decreases;
3 week- the embryo lives in the mother's body, the egg is fertilized by the sperm, divides, after 2.5 weeks it reaches the uterus, which becomes loose by the end of this period. Nothing prevents the egg from attaching securely to the mucous membrane. The metabolism changes, the mammary glands coarsen. It is necessary to replace sweets with nuts, eat foods rich in calcium, protein, folic acid, iron;
4 week- Mom detects a delay in menstruation, nausea, malaise may appear. Hormones released during pregnancy can be seen already in the urine in a laboratory analysis. The embryo is laid internal organs, mom needs vitamins;
5 week- the uterus thickens, the baby looks like a tadpole, but its eyes and nostrils are already forming, there is already a heart, the base of the skeleton is formed. The baby receives nourishment and oxygen from the mother's blood. The woman's ovaries actively release progesterone, the mother's immunity decreases. In 7 days, the embryo grows up to half a centimeter;
6 week- is being formed amniotic sac, which protects the embryo from any troubles, the nervous and circulatory systems develop hourly. There are processes of creation of the brain, liver, respiratory organs, pancreas. The baby grows up to 1.3 cm;
7 week- the size of the head of the embryo reaches 0.8 cm. The visual system is formed, neural tubes thicken, top part intestines secretes the esophagus, stomach and pharynx, under the lower one is noticeable bladder, rectum, in male embryos - the prostate. In a woman, the skin of the face can become oily during this period, as in a teenager. Hormonal changes can cause itching. In case of any trouble, it is better to consult a doctor for advice;
8 week- maximizes development nervous system, the medulla oblongata is ready for work, the spinal cord and brain have already fully formed, the eyes are still without eyelids, there is a nose, fingers and elbow joints appear on the handles. Mothers should beware of infections;
9 week- the third month begins, the face acquires human features, the eyelids form, a sucking reflex appears, the circulatory system circulates inside the tiny organism, the heart acquires three chambers, the bronchi branch. Mommy's breasts are growing so much that the next bra number is required. The uterus is enlarged, the ligaments are stretched, pulling sensations in the lower abdomen for this period - the norm;
10 week- A 5-centimeter embryo is already considered a fetus, on ultrasound you can see its gender. His nervous system was divided into central and peripheral, the hemispheres of the brain become more independent. An enlarged uterus is groped even with hands, you constantly want to go to the toilet;
11 week- the baby's body gradually straightens, reaches 5.9 cm, the legs begin to actively catch up with the arms, an iris forms near the eyes, lymphocytes appear. The mother's kidneys experience a double load, removing metabolic products for two;
12 week- A 50-gram fetus has grown to more than 7 centimeters, the movement of the chest during breathing is noticeable, the heart beats more than 150 beats per minute, milk teeth, vocal cords, and diaphragm are formed. Mothers need to get enough sleep, exercise, keep calm;
13 week- the placenta has reached 16 mm, becoming reliable protection for the baby. From this point on, the body will even withstand antibiotics, if necessary. Bones and ribs need calcium. Without subcutaneous fat, the skin looks wrinkled. Mom may experience constipation, lower blood pressure, and disturb the kidneys. It is important to eat right in order to gain no more than 11 kg for the entire pregnancy, for multiple pregnancy- no more than 17 kg;

Second trimester: 14-27 weeks

This is a mildly flowing period of bearing a baby, during which the mother's body is completely ready to work for two, despite weight gain, rounding of shapes, and the appearance of a belly. The embryo has fully formed internal organs and systems, the child moves its limbs, sucks its finger, and the feeling of its movements gives the mother endless delight. More:

14 week- baby supports chemical composition amniotic fluid, excreting urine in them up to several times a day. The ovaries in girls and the prostate in boys are improved. The lack of vitamins affects the well-being of the mother. She has a feeling that there is not enough air. It is worth eating less potatoes and legumes. You may be allergic to strawberries, peaches, oranges;
15 week- the heart of the crumbs overtakes about 23 liters of blood, convolutions form in the brain, the bone marrow develops, the intestines form the original feces, the amount of amniotic fluid increases. You can talk to your baby! The height of the uterus reaches 14 cm. The woman begins to bloom;
16 week- the date of the baby's movement helps to more accurately set the date of delivery, he actively moves every 10 minutes. He opens his eyes for the first time. Fetal movement may appear by the 20th week. Charging and correct menu improve the condition of the mother;
17 week- the weight of the fetus exceeds 100 g, and the height reaches 12 cm. He and his mother need calcium, healthy food, since the body type is laid. A woman feels pressure in the stomach, liver. You have to eat many times a day in small portions so that the stomach has time to cope. Sometimes there are cramps in the legs due to a lack of B vitamins, magnesium, calcium;
18 week- height small child 13 cm, weight - 170 g, head diameter - almost 4 cm, fingers become proportional, foot length reaches 2.5 cm. Moms rejoice, feeling his movements. At this time, there is a high probability of determining the sex of the baby on an ultrasound scan. The ideal weekly weight gain for a mom is 500 g. To reduce swelling, you need to consume less salt;
19 week- the child reacts to screams, the volume of the voice, turns the head to the sound. Listen to pleasant music, do not quarrel with your family. A pattern is formed on children's palms. Shocks in the tummy become more distinct. Women do not always distinguish the movement of the fetus from the processes that occur in the intestines;
20 week — endocrine system formed, parts of the brain are improving, the baby can swallow, has good hearing, its weight is about 290 g, height is about 24 cm. comfortable bra;
21 weeks- if a baby is suddenly born after this period, its ability to survive increases significantly. Systems and organs are formed, the stomach grows and rib cage, head, subcutaneous fat is formed, receptors on the tongue distinguish taste, the first leukocytes appear in his body. Requires a lot of protein and 4 times more carbohydrates;
22 week- the brain weighs 100 g, the height of the fetus is 28 cm, the weight is about 430 g, the mass of the heart increases, the ligaments and vertebrae are clearly visible. It is necessary to consider the movements of the child, since swelling can transfer blood vessels carrying food to the placenta;
23 week- alveoli are formed, the respiratory system develops. Mom needs to drink plenty of water, because plasma is made up of it. On the head of the child, a fluff is noticeable during ultrasound examination, muscles, spine, bones, aorta are clearly visible;
24 week- Gradually, the skin of the baby is smoothed out, due to the appearance of subcutaneous fatty tissue. The baby feels the emotions of the mother. The doctor listens to how the heart beats, whether the breast, tummy has grown, what is the diameter of the head;
25 week- the weight of the child is 680 g, height - 34 cm. The bone marrow is connected to blood formation. In order for the alveoli to function, surfactant accumulates in the lungs. The bottom of the mother's uterus has risen to 25 cm, legs get tired more often, pain in the lower back appears;
26 week- the baby has grown to 35 cm, gained more than 770 g, smells, reacts faster to voices. The diameter of the head is now 65.1 mm, the abdomen is 67.4 mm, and the chest is 65.8 mm. By this time, the woman puts things off, spares herself more;
27 week- bookmark the speed of reactions, metabolic processes. Mom needs to gain strength for the upcoming third of gestation. The period is characterized by frequent shortness of breath due to a feeling of lack of air.

Third trimester: 28 weeks to delivery

The most difficult stage for a mother is from 7 months to childbirth. He is accompanied active growth baby, preparing the child for independent existence. Details:

28 week- the baby is exactly 7 months old, you can determine whether he will be right-handed or left-handed. To do this, the ultrasound shows which handle he often reaches for his mouth. There is already enough surfactant in the lungs so that the alveoli do not stick together during the first breath;
29 week- the growth of the baby has reached 38 cm, the weight is more than 1 kg. In the lubricant, he only has a tummy and folds. He becomes cramped inside his mother, and the blood fully protects him from infections, but venous and arterial blood are still mixed. The daily portion of urine excreted is 500 g. Mom is supposed to maternity leave;
30 week- the chest of the crumbs grew to 77.4 mm, and the tummy - to 79.3 mm. The cerebral cortex is formed, the child begins to remember some sounds, sensations. Mom will have to visit the gynecologist weekly. Due to the increased pressure on the vessels during sleep, the hands go numb, the legs cramp. The ligaments become elastic, you can do light stretching workouts in the pelvic area;
31 weeks- The child's weekly weight gain is about 200 g. The child needs subcutaneous fat to keep warm. The pigment accumulates in the hair and the iris of the eyes. Sometimes the uterus rehearses childbirth, one-time contractions appear;
32 week- the baby weighs 1700 g, the body length is over 40 cm. If the placenta "gets old", the nutrition will be disturbed, and deviations will appear in development. By this period, the first hair appears. The mother produces vasopressin and oxytocin;
33 week- the child has to take the fetal position, because there is not enough space. The body reached 43 cm, the head - 8.2 cm, the tummy - 87.4 mm, the breast - 85 mm. The placenta copes with the function of protecting the baby from harmful factors and nourishes it through the blood;
34 week- the baby weighs 2.1 kg. The placenta produces hormones that cause lactation. Its thickness is 3.39 cm. It is important not to overdo it with the use of calcium in order to exclude birth trauma. It is necessary to continue to count the movements of the fetus - 4-6 movements are considered the norm;
- childbirth is possible this week, but heredity determines a lot. The head is 1/4 of the body length, its diameter is 91 mm. Feet have been defined. The genitals and reflexes of the baby are developed. The placenta dries out, delivers nutrition worse. Mom is focused on the upcoming meeting with the baby;
39 week- the baby weighs 3.3 kg, height - 51.5 cm. Thanks to the fontanelles made of cartilage, the bones of the skull remain supple so that the child can pass through the birth canal. The baby will be able to distinguish objects at a distance of 30 cm from the eyes. The placenta ages and the fetus feels a lack of oxygen. Mom prepares things for the hospital and documents;
40 week- the child patiently waited for this hour, gained more than 3.5 kg, grew to 53 cm. The mother becomes anxious if childbirth does not occur. Before delivery, you often want to go to the toilet, the lower back aches, the cervix gradually opens, colostrum is released from the nipples.

If the birth did not occur at the 40th week, it does not matter. Resolution within 42 weeks is considered normal. It remains to trust nature. Only 10% of women in labor reach the 42nd week. Dopplerography and ultrasound are performed to assess the condition of the baby and mother. The main thing is to remain calm so as not to harm the health of mother and child.

"cervix" in Latin means "neck") or canal cervix. The cervix is 4 cm long and the width of the cervical canal is a maximum of 4 mm. The shape of the canal resembles a spindle, that is, its widest part is located in the center of the cervix, and the canal narrows up and down. This form ensures the preservation of the mucous plug, which is normally present in the cervical canal.

Description

This calculator will allow you to calculate what stage of pregnancy you are currently in, the date of future birth, the date of conception, and even the zodiac sign of the future baby and his zodiac animal according to Eastern calendar. You can also determine the age of the fetus, its weight and height, and how much time is left before delivery. To do this, you need to enter the date of the first day of the last period and the duration of your menstrual cycle. In addition, our calculator generates a very convenient and practical weekly pregnancy table. Using it, you can navigate which week of pregnancy you are currently in, as well as track the height and weight of your unborn child.

pregnancy calculators

The calculator calculates your pregnancy based on your last period. The gestational age is obtained in "obstetric" weeks.

As a rule, every pregnant woman has her own calendar, where she enters all the necessary data, outlines important dates, and takes notes. With its help, the gestational age is usually calculated.

Given the nine-month duration of this period, calculations on a piece of paper seem to be a very routine task. But modern women live at a great time - they are not at all obliged to keep such a calendar and do tedious arithmetic, unless, of course, they are so sentimental that they decide to keep their weekly notes as a memory of beautiful time gestation. You can safely entrust the program to take care of calculating the gestational age. Indeed, for those who prefer to spend their free hours on activities that are much more useful for the future baby and his mother, there are numerous virtual services like this one (we hint at our calculator).

What do you need to calculate the gestational age?

In order to calculate the gestational age right now, you only need to remember the date when the last menstruation began and enter it in the appropriate form fields. This number is the starting point of your pregnancy. It is about the so-called obstetric weeks”- all over the world it is customary to count pregnancy in this way, although fertilization occurs only in the middle of the cycle. This measure is necessary for the convenience of doctors, but often causes surprise and misunderstanding among patients.

It is worth noting - during an ultrasound examination of the fetus, you will encounter the fact that the known gestational age can be calculated differently - by the weeks of the fetus's life, that is, from the day of conception. You may even find an entry on the ultrasound results sheet that lists both dates. In order not to be embarrassed by such contradictions, feel free to ask the doctors about what period pregnancy is coming speech, real or obstetric?

It is very important to emphasize that even if you know the exact date of conception of the baby, in order to calculate the gestational age using the calculator, you need to use the date of the last menstruation. If you find it difficult to remember, count 2 weeks ago - with a standard 28-day cycle, ovulation most often occurs on day 14.

I don't remember when I had my period. What to do?

Sometimes it happens that a woman does not know when she had her last period, for example, she does not remember, does not follow the regularity of the cycle, or has just stopped taking contraceptives. If you have no idea what your gestational age is, it can be calculated at. The data obtained in the early stages (up to 12 weeks), when the rate of development gestational sac are still very large and changes are noticeable literally every day. The size of the fetal egg alone, without taking into account the proportions of the fetus, will tell the doctor a lot. For more later dates Errors up to 2 weeks are possible.

Another very informative method that allows you to calculate the gestational age is biochemical - a study of a woman's blood for the content of hCG - human chorionic gonadotropin. This hormone is produced by the fetal egg and is present in the body only during pregnancy (by the way, it is on its determination in the urine that the well-known instant pregnancy test is based). Content and healthy pregnancy is clearly in line with the timing. It is worth noting that this is far from a routine method that requires a lot of time and money and is used mainly for medical reasons.

It is impossible not to mention that finding out the gestational age, calculating and assuming the probable age of the fetus is within the competence of the obstetrician when conducting a vaginal examination in the early stages. The main object of research in this case will be the uterus and palpation (manual) determination of its size. Of course, we are not talking about absolute accuracy, but the data obtained is quite enough to successfully monitor the health of the expectant mother and fetus.

Questions for the article

On the ultrasound on 06/30/2017, the doctor said nothing was visible, only there was a cyst...

I looked at the test, but I had negative result. but so...

The lower abdomen hurts periodically, it swells, it hurts the stomach, what can it be ...

Please, from what week can you feel the movement of the fetus? ...

The size of the fetal egg corresponds to 3-4 weeks, according to hCG at 2.02 4539, at 4.02 ...

Pregnancy ... but it's still too early to do the test and there is no delay, but I already ...

The result of hcg is 20.9 mlu/ml. what is my gestational age? last...

Please. The first day of the last menstruation is 04/20/2016. (conception after...

Accordingly, the period should be 8 weeks, but they put 4-5 on ultrasound ...

Allocations ( brownish color), What does it mean?...

Pregnancy is one of the most exciting and at the same time crucial periods in the life of every woman, and therefore it is not at all surprising that each of us wants to know the date of birth as soon as possible. However, this issue often causes numerous disagreements and disputes. Expectant mothers “torture” doctors with their questions, because you want to prepare for important event, however, they only shrug, because they are not able to determine with high accuracy the date of the birth of the long-awaited baby.
In order to Calculate the date of birth, click the "find the date of birth" button.

Today: 18.03.2019
Date of the first day of the last menstruation:
Conception most likely happened (+-2 days):

Estimated due date:
Left before birth:

The calculation of the expected date of delivery (ED) is carried out in several ways, each of which is indicative. That is, if, according to estimates, the baby should be born on January 1, then it is not a fact that this will happen with absolute accuracy on that day. Very often there are deviations from the expected date in one direction or another. And childbirth can begin either 2 weeks earlier or later. I bring to your attention a fairly simple, but very effective way to find out the probable due date of a child, which has been successfully used by many doctors in clinics for quite a long time.

Calculation on the last day of menstruation

So to be on your own calculate gestational age and on it to determine the expected day of birth, it is necessary to remember the date of the beginning of the last menstruation. It is on its basis that all calculations are made. From this date, you must subtract 3 months and add another 7 days to the result. The resulting number will be the estimated date of birth of your long-awaited baby.
For example, the date of the last menstruation is April 22. So, from this date you need to subtract 3 months. Subtract and receive - January 22. We add another 7 days to this figure and get January 29 - this day will be the expected date of birth.
It is worth noting that this method of calculation is best suited for women with a regular menstrual cycle that lasts 28 days.

4 Alternative Ways to Calculate Due Date

1. You can find out the due date, with a fairly high accuracy, by visiting the gynecologist's office. The doctor will not prescribe any tests for this, he will simply measure uterus size, which will increase in size in accordance with the age of the fetus. However, this method of calculating the date of birth of the baby is effective only in the first trimester of pregnancy. In the later lines (in the 2nd and 3rd trimester), for each woman, an increase in the size of the uterus occurs with different intensity, depending on individual features organism.
2. You can calculate the date of birth by ovulation, which is the most favorable period in which conception is most likely to occur. On such days, a woman usually experiences increased sexual attraction. In addition, her secretions (cervical fluid) become more sticky and thick, basal body temperature the body rises by a few tenths of a degree, the cervix rises, and the mammary glands thicken and become painful.

So, in order to find out when your baby will be born, according to ovulation, you need to add 280 days to this day (pregnancy duration). The resulting period will be the date of birth. If the period in which ovulation occurred is unknown, then calculate the middle of the last menstrual cycle, and then add the rest to it.
In the same way, you can perform calculations on the date of conception. However, you should be aware that this period does not always coincide with the day on which sexual intercourse occurred. Fertilization of the egg, as a rule, occurs only on the third day.

3. Hardware computing using ultrasonic waves can also be attributed to the most effective methods, which allow you to determine the term of childbirth with an accuracy of 1-3 days. The most correct calculations will be if ultrasound is done during the period of 11-14 weeks of pregnancy.
4. Declassify the secret of your child's date of birth will help him first stir, which usually occurs at the 20th week (in nulliparous) and at the 18th - with the second and subsequent pregnancy. In ancient times, when there was no ultrasound, this method of calculating the due date was almost the only one.

As soon as future mom feels the first tangible tremors of her baby in her stomach, then from that moment 20 weeks should be counted. The resulting date will be the probable day of the birth of the child. If the birth is not the first, the movements are usually felt earlier - at the 18th week, so you will have to add not 20, but 22 weeks to this period.

The effectiveness of hardware methods in calculating the term of labor

A study of the fetus in the third trimester on an ultrasound machine allows you to determine the date of pregnancy with high accuracy, and hence the expected date of birth. The point is that only with ultrasound diagnostics the doctor can observe condition of the placenta, the position of the baby's head in relation to the entrance to the small pelvis, the level of opening of the cervix, signs of fetal maturity, and many others important factors. All these parameters are decisive in determining the readiness of the future baby and his mother for childbirth.

Deviation from the deadline - is it the norm?

As mentioned above, all calculations of the estimated date of birth are nothing more than an approximate guideline, which should not be heavily relied upon. According to statistics, only 17% of women give birth on the appointed day, while the remaining 83% - either earlier or later. Thus, we can conclude that no specialist, no matter how smart and qualified he may be, is able to predict with high accuracy the date of the onset of labor activity.
Normally, childbirth can occur between 38 and 42 weeks. pregnancy. The birth of a child will not be premature or belated, but normal and physiological. Sometimes for certain reasons generic activity may start prematurely. This happens due to abnormalities in the development of the fetus, stressful situations, various pathological processes occurring in the mother's body, hereditary factors, etc.
Often there is a re-carrying of pregnancy due to the fact that in the first trimester there were any complications. In addition, maternal heredity should be taken into account. If your mother and grandmother gave birth much later due date, then, most likely, the same awaits you. Therefore, it is very important to realize that the calculation of the term of childbirth is a very complex, conditional and individual issue for each expectant mother.

How do the features of the menstrual cycle affect the date of birth?

The length of a woman's menstrual cycle also affects the duration of childbirth. For example, if it exceeds the standard twenty-eight days, then most likely the pregnancy will last more than forty weeks, and vice versa. However, in this case deviation in one direction or another usually does not exceed 5 days. It is worth noting that errors are often made in such calculations, since very often ordinary bleeding is taken for menstruation, which opened after the fertilization of the egg.

This calendar is based on real time pregnancy, that is, from conception. obstetric term, the one that gynecologists put up, is ahead of the real one by 2 weeks. Consider this.

In the first week of pregnancy, the fusion of the egg and sperm occurs, a zygote is formed, from which the chorion (placenta) and the embryo will subsequently form ( future child). At conception, the sex of the baby is determined.

The second week of a baby's life is marked by the fact that the zygote finds a place in the woman's body where it will develop. It is implanted in the wall of the uterus or other organ (then ectopic pregnancy). In the urine and blood of a woman, chorionic gonadotropin (hCG) is determined.

In the third week, pregnancy tests “stripe”, the woman begins to delay menstruation and toxicosis. On ultrasound, most likely, the fetal egg will not be seen yet, it is too small. But the signs of pregnancy are already appearing. And a very tiny embryo begins its development. He has a well-defined body and head.

At the 4th week, the length of the embryo is 2-4 mm, and the fetal egg is about 1 cm or a little more. On good equipment ultrasound research they are clearly visible. If everything is normal, the fetal egg has an even shape. If there is a detachment of the fetal egg, the doctor threatens spontaneous miscarriage. Most often, pregnancies are terminated at this time due to severe chromosomal abnormalities fetus.

In the fifth week, the heart begins to work in the fetus, and it is its beats that are the main evidence that the pregnancy is developing. It's time to register with a gynecologist and be sure to read the calendar by weeks of pregnancy.

At 6 weeks, the embryo weighs about 5 grams and is about 20 mm long. It grows by a millimeter per day. Almost all of his organs are formed. There are even convolutions in the brain. And facial features are becoming more distinct.

Doctors stop calling at 7 weeks little man embryo. Now he is a fetus. And they will remain until the very birth. The baby is very mobile in the uterus, moving with might and main, surrounded by amniotic fluid, but mom does not yet feel his movements. The fruit is still very small.

At 8 weeks, the size of the baby can be compared to prunes. While the baby, but the body is already formed. There are even tiny nails on the hands. In the future, all organs and systems will only improve.
Nine weeks - one minimum term, on which the doctor can see the so-called genital tubercle in the fetus and suggest its gender. The accuracy of this "prediction" depends on the experience of the doctor and the quality of the equipment used.

The next week is marked by the first screening - ultrasound plus a blood test. The baby has grown so much that the doctor can accurately diagnose possible chromosomal abnormalities in him.

Week 11 is the last on which the screening will be informative. Don't forget to pass! The baby is growing at a fast pace. He began to bleed, and colorless fluffy hairs appeared on his head.

On 2D ultrasound at twelve weeks, the baby now looks more like a small humanoid, but on 3D, facial features are visible. True, there is still not enough fatty tissue, and the baby's face looks very thin. The first congenital reflexes and facial expressions.

All 9 months of pregnancy in 4 minutes.

2013-06-05T00:00:00

Over the next week, some mothers begin to feel the first movements of the babies. Mostly these are women who are not the first baby. The growth of children reaches 10 centimeters, and the weight is 50 grams.

At 14 weeks, the sex of the baby is clearly visible on the ultrasound. There shouldn't be any mistakes. However, sometimes it cannot be determined if the baby is in an uncomfortable position. Babies at this gestational age begin to make respiratory movements and squint if mother's belly direct a source of bright light.

By the fifteenth week, a pregnant tummy begins to appear in mommy. You have to buy clothes for expectant mothers or suitable for a rounded tummy.
The placenta by this time is fully formed, protects the fetus from infections and serves as a transmitter of nutrition and oxygen from the mother's body.

16 weeks is a special period in the development of a child, since the thymus gland is formed in him - this is a temporary organ that gradually, over 30 years of life, disappears in all people. In addition, the brain is actively developing, and the bones begin to accumulate calcium.

At seventeen weeks, some mothers will notice that their shoes have become small or narrow. This is due to swelling of the legs. temporary phenomenon.
The fetus develops the rudiments of molars. He already has tactile sensations, touch. Therefore, he likes to feel his body.

18 weeks - perfect time for the second ultrasound screening. The baby is already large and most of the markers of chromosomal abnormalities are visible. Almost all women already feel fetal movements and it is at this time, on ultrasound, that they will find out who they are waiting for - a boy or a girl. The approximate height of the fetus is 20 cm, and its weight is close to 400 grams.

The baby is becoming more and more like normal newborn, however, very small and thin. At nineteen weeks, he is already swallowing amniotic fluid and urinating in it. Spinning in the uterus with might and main. Can daily change head position to transverse or pelvic. At this time, doctors do not pay attention to the presentation of the fetus.

Twenty weeks of gestation is marked by an improvement in the child's hearing. He hears a knock quite clearly, as far as possible. maternal heart and her voice. You can understand how a child hears if you completely lower your head into the water and ask someone to say something. That's how he hears through amniotic fluid. And yet, this is the period when the fetus reaches a weight of 500 grams, and if he is born now, doctors will be obliged to fight for his life.

By the 21st week of pregnancy, the fetal heartbeat is easily heard using a special wooden tube - an obstetric stethoscope. The baby continues to grow. Fat is deposited around his organs. This is necessary for their normal functioning after birth.

At 22 weeks, the weight of the fetus is about 700 grams, and the height is 22 cm. An intrauterine day regimen is being formed. Usually the baby at this time sleeps during the day, involuntarily rocked by his mother, and is awake at night.

By twenty-three weeks, the baby's hearing has improved so much that he can distinguish between familiar and unfamiliar voices. The vocal cords are formed, and subcutaneous fat is deposited. If you now do a three-dimensional ultrasound, you can clearly see the face of the child and understand which of the parents he looks more like.

At 24 weeks, the baby can distinguish between light and darkness, reacts to flashes of light. But the eyes are still devoid of pigment. It will show up in about a month. But the final color of the eye will be formed only 4-6 months after birth.

At 25 weeks, the weight of the fetus approaches one kilogram, and the height is about 40 cm. In the future, the baby will not grow so actively in length; at birth, full-term babies have average height 50-55 cm, but in weight it will gain at least another 1.5-2 kg.

At the 26th week of pregnancy, the hair of the fetus acquires an individual shade, they are no longer snow-white. The lungs are actively developing, but if the baby is born now without medical preparation(dexamethasone injections to mom), then she can only breathe on the machine artificial ventilation lungs.

At twenty-seven weeks, the fetus occupies the entire uterine cavity, therefore it is less likely to turn upside down and back. Nevertheless, it is too early to worry about his presentation. By the way, the doctor can easily determine the position of the fetus at this time by palpating the belly of the pregnant woman on the couch.

If you do an ultrasound at the twenty-eighth gestational week, then mommy can see how her baby sucks her thumb! This habit will remain with him even after birth. The sucking reflex is very important for the first months of a baby's life. And the fetus has learned to cry, and sometimes real tears flow from its eyes!

At 29 weeks, the weight of the fetus is approximately 1.5 kg, and the height is about 45 cm. No special organ development occurs anymore. In fact, only the lungs develop. They form a surfactant - a substance that will not allow them to stick together after birth.

Thirty weeks is the ideal time to complete the mandatory third ultrasound. The doctor looks at how and how accurately the child is developed, is it okay uterofetal circulation whether there is enough amniotic fluid. And also, puts the approximate weight of the fetus. Depending on these data, it can be assumed whether there is a trend towards the birth of a large child.

At 31 weeks, the fetus is so developed that it is able to see and hear well. True, in utero, his eyes are almost always closed, since keeping them open in the water is not very comfortable. In boys, the testicles descended into the scrotum. And the appearance of the genitals in girls became common - the large labia covered the small ones.

On next week the fetus undergoes a developmental leap immune system. She actively produces antibodies. The adrenal glands also function, which form a steroid hormone.

At 33 weeks, the baby weighs about 2400 grams, almost like full-term. And, most likely, he will be able to breathe on his own if he is born at this time. However, while he is immature, and mommy should try to "hold on" for at least another 3 weeks.

Next week is the start last month pregnancy, eighth. The weight of the fetus is approximately 2700 grams, and some babies have already gained 3 kilograms each. The bones on the baby's head are movable to make it easier for him to be born. Almost all the children lay down with their heads down. But even if the baby at this time is in breech presentation, there is still hope for its coup, if amniotic fluid is not too small.

35 weeks - some babies are born at this time. But although officially they are eight months old, born ahead of time, in almost one hundred percent of cases do not require rehabilitation and are not in the children's department or intensive care after birth, but in the ward with their mothers.

39 weeks. More often these are those who ovulated a little later than the standard 12-14 days of the cycle. At the same time, children are born completely normal weight. If the fetus feels good on ultrasound, actively moves, the woman’s cervix is not “oak”, she is placed in a hospital and waiting for the independent onset of labor.

40 weeks of pregnancy from conception or 42 obstetric, the last one that doctors can give to wait for the onset of labor. But more often this week they are stimulated.

Interactive pregnancy calendar

In order for the program to create your personal pregnancy calendar, enter the date of the first day of your last menstruation into it. In this exact way, all obstetrician-gynecologists calculate the gestational age.

So you can find out what to expect in a particular week of pregnancy. It is very interesting. Try it!

pregnancy calendars

Calculate your pregnancy calendar by week. Every week of your pregnancy from 1 to 40 weeks with details.

Pregnancy is an amazing and exciting time in a woman's life. In just 40 weeks, a whole organism is formed from one cell, capable of living in the environment. Man never again develops at such a rapid pace as in prenatal period. Every day the fetus changes appearance, there are new organs, new abilities. The appearance and well-being of a woman is also rapidly changing - last month her “ interesting position” was not noticeable to anyone, and today a pretty round tummy has already appeared. During the gestation of the fetus, you need to do a lot - you will have to go through more than one medical examination, pass several tests, review your menu and sleep patterns, change habits and update your wardrobe. It is better to prepare for all the changes in life in advance and especially so that you are aware of all the upcoming surprises, we have prepared detailed calendar weeks of pregnancy.

Where does the two-week confusion come from?

Doctors in women's consultations Traditionally, the gestational age is counted from the first day of the last menstruation, despite the fact that conception occurs, according to such calculations, only in the third week of pregnancy. Our interactive calendar is built according to the same scheme - this is the so-called obstetric pregnancy calendar. There is another, much less frequently used, method for calculating the duration of pregnancy, when the day of conception is taken as the starting point. The resulting calendar, it would be correct to call the calendar of fetal development. Sometimes this method is reflected in the conclusions obstetric ultrasound, where it is possible to determine the life expectancy of the fetus with an accuracy of one day, especially in the first trimester. As a rule, the fetal development calendar lags behind the obstetric pregnancy calendar by about 2 weeks.

It is most logical to paint the pregnancy by weeks - so you will better imagine how your baby grows and what processes pregnancy causes in your own body. Studying the weekly pregnancy calendar, you will find timely advice on how to choose clothes for pregnant women, how to avoid toxicosis, how to eat right during pregnancy. Accordingly, each week the size of the fetus and its new skills are given - you will be surprised at how much it already has, when even the tummy is not yet visible to others!

In order to automatically calculate the pregnancy calendar, you can use the calculator on the site. It is enough to enter the date of the first day of your last period, and you will receive a weekly calendar of your own pregnancy. Perhaps it should be interesting for a pregnant woman to find out every week about how her baby's life is going, but you should not take the given terms literally. Keep in mind that the duration of pregnancy, as well as the rate of fetal development, is always individual and may differ slightly from the data provided by the interactive pregnancy calendar. The following pattern is characteristic - the longer the menstrual cycle, the longer the pregnancy lasts.

Questions for the article

Gram? Weight before pregnancy 80 kg, now 82.700. And seven weeks ago was ...

They said. And now I wonder))) what? ...

Estimated date was 04.07.17. But I still haven't given birth and nothing...

Cough, no fever. I am treated with chamomile, milk with honey, my nose is nothing ...

4 times a day. And at 10 pm I can eat. This is fine? I have 10...

Obstetric week, did in Moscow, they appointed a divigel and ...

fetus. This is fine. Sometimes there are imperceptible shocks. I have...

I did 3 tests, all 3 showed a weak second strip, the next ...

Indication 100102 .... this is normal, I'm very worried, tell me ...

Date of conception - 03/15/2017. HCG 04/06/2017 - 6145.2 mIU / ml. At the same time, less than 48 ...

Free, resultant 2.0 ng / ml - is this pregnancy ??? ...

That 6 weeks but shows like more. The ultrasound showed 4 weeks. Maybe...

1 day of delay the day before the start of menstruation, I watched the test showed ...

ml. Ultrasound on 01/11/2017 did not show anything. Please say this...

Doctors and ultrasound everything was fine, but for the last three days I started to get sick ...

I took Belara. On cancellation, menstruation came in the first cycle (33 days ...

Could this affect the baby? Can my gynecologist prescribe...

11/30/16 on hcg - result 1062.2. What does it mean? ...

Placental abruption 20mm by 4mm. The doctor said nothing, it will grow. But ...

2x five days)? 14 DPP - 1290 IU/L, 19 DPP - 6149 IU/L? Only on Uzi...

Pain started in the area pubic bone while walking and when...

The second one is bright. And in the evening, spotting spotting a little ...

September, in October they are not) What is my week? How to calculate? ...

A week. Last menstruation 09/12/16 cycle 30 days. Gynecologist says...

The last menstruation was 04/27-05/04. May 5th was protected sex....

I read you in an article that it could be a fetus with Down syndrome ....

Syphilis, passed recently by her husband: anti-Treponema pallidum Ig M negative,...

The condom broke, is there a chance of pregnancy? ...

Change KP.) (Reference values 1.1-positive. What does this mean? ...

Be monthly. I did tests 28, 30 and so on. All are negative. By 8...

Weeks found at home there is a cat and he is constantly at home on the street ...

Sometimes a little 3-4 times a day is it normal pregnancy 16 weeks?...

Menstruation was noted not expressed pain in the lower abdomen, now ...

My throat hurt, then my nose stuffed up, not big snot, isn't it dangerous ...

1.00-5.00 and immature granulocytes 0.3% ref. interval 0.0-0.2. What is...

Vozmojno chto ya beremenna?i esli da ,to kakoy srok?pojalusta otvette esli mojno?...

Menstruation 07/19/20015. Thank you!...

Detachment of the placenta. If I understand correctly, the embryo does not receive enough ...

The previous children also had a tone and the doctor constantly scares me ....

(there is no year 16) PERSONAL PREGNANCY CALENDAR FOR ...

Weeks! a slight runny nose, tickle in the throat and weakness! isn't it like...

Lower abdomen as during PMS, spotting no, is it dangerous...

11/28/15 hCG showed 11564, which corresponds to 4 weeks of pregnancy, ...

At 6-7 weeks there was a threat of miscarriage, with a second pregnancy it can ...

Years, the cycle was approximately 34-35 days, but not exactly. pregnancy on...

The test showed that she was pregnant. but I don't remember the last date...

Keep in mind that, according to the calculations, I had to gain at least 5 kg ...

Regular. Now the delay is 7 days. Tests neg. On cycle day 16...

Accounting for pregnancy with a weight of 76.4 kg (term 5-6 weeks). Then I suddenly...

Menya.vozmojno beremennost v etom mesyace?i chto mojno zdelat zaranee chtob eto ne sluchilos?...

The beginning of menstruation on 09/02/15, in fact, conception occurred from 3 to 5 ...

Came with a delay of 2-3 days, the end in my 7.05 or 8.05. Sexual intercourse in...

The fact that the gynecologist did not listen to me carefully. The fact is that...

The anterior wall of the uterus. progesterone and papaverine were injected. everything ...

Praise and accept the likeness of the world? The date of the remaining months is 01.07.12....

Evenings before going to bed, not knowing that she is pregnant (for a period of 3-4 weeks) ....