Signs of good fetal development in the last 3 months

This is an automatically translated article.


The article is professionally consulted by Specialist Doctor II Bui Minh Phuc - Department of Obstetrics and Gynecology - Vinmec Ha Long International Hospital.
The third trimester is also the final stage of pregnancy. At this stage, the fetus continues to develop and mature so that it can be born in a healthy way. Here are the signs of good fetal development in the last 3 months.

1. 28th week: baby's eyelids partially open

During the 28th week of pregnancy (equivalent to 26 weeks after fertilization) the baby's eyelids may partially open and eyelashes begin to appear. The fetal central nervous system can control breathing movements and regulate body temperature.
At this time the fetus is about 250 mm long and weighs about 1000 g.

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2. Week 29: the fetus kicks and stretches

The 29th week of the third trimester (equivalent to 27 weeks after fertilization) the fetus is able to kick legs, stretch or perform hugs.

3. 30th week: fetal hair grows

During the 30th week of pregnancy (equivalent to 28 weeks after fertilization) the baby's eyes can open wide. Fetal hair also grows well around this time. The fetal bone marrow begins to produce red blood cells.
At 30 weeks of pregnancy the fetus is about 270 mm long and weighs about 1300 g.

4. 31st week: rapid weight gain begins

The 31st week of pregnancy (equivalent to 29 weeks after fertilization) the fetus has completed most of the main development steps. Now is the time to gain weight fast!

5. 32nd week: the fetus learns to breathe


Thai nhi tuần thứ 32
Thai nhi tuần thứ 32
At 32 weeks of pregnancy (equivalent to 30 weeks after fertilization) the toenails of the fetus are already visible.
The soft hair on the baby's body that has existed for the past few months begins to fall off.
At 32 weeks of pregnancy the fetus is about 280 mm long and weighs about 1700 g.
See more: When the fetus is 32 weeks, what should mothers pay attention to?

6. 33rd week: the fetus senses light

During the 33rd week of pregnancy (equivalent to 31 weeks after fertilization) the pupils of the fetus can change size in response to light stimuli. Your baby's bones are stronger, but your baby's skull is still soft and pliable.

7. 34th week: fetal nails grow longer

During the 34th week of pregnancy (equivalent to 32 weeks after fertilization) the baby's fingernails have grown to cover the fingertips.
At this point the fetus is about 300 mm long and weighs about 2100 g.

8. Week 35: baby's skin is smooth and pink

At 35 weeks of pregnancy (equivalent to 33 weeks after fertilization) the skin of the fetus becomes smooth and pink. The baby's arms and legs now look quite chubby, these are signs that the fetus is developing well in the last three months of pregnancy.

9. 36 weeks: the fetus takes up most of the amniotic sac space

The 36th week of pregnancy (equivalent to 34 weeks after fertilization), the fetus is now large, making the uterus narrow compared to the fetus, but the pregnant woman still feels the movements of rolling, wiggling, flexion of the fetus.

10. 37th week: the baby turns its head down

The 37th week of the third trimester (equivalent to 35 weeks after fertilization) the fetal hand is able to grasp firmly.
To prepare for labor, the fetus begins to rotate, the fetal head is pointing down the pelvis (to form the first position in labor). If not, the obstetrician will discuss with the pregnant woman how to handle the situation.
See more: How many weeks pregnant is considered full term to give birth?

11. 38th week: fetal toenails lengthen

The 38th week of pregnancy (equivalent to 36 weeks after fertilization) the fetal head circumference is equal to the abdominal circumference.
Fetal toenails grow long and cover the tip of the toe. Almost all the hair has been shed from the fetus.
At 38 weeks of pregnancy the fetus weighs about 2900 g.

12. 39th week: fetal ribcage develops further


Tuần thứ 39: lồng ngực thai nhi phát triển hơn nữa
Tuần thứ 39: lồng ngực thai nhi phát triển hơn nữa
During the 39th week of pregnancy (equivalent to 37 weeks after fertilization) the fetal ribcage continues to develop further. In a male fetus, the testicles continue to move downward into the scrotum. Fat is distributed throughout the fetal body to help the fetus retain heat after birth.

13. Week 40: the time for mother and daughter to meet has arrived

The 40th week of pregnancy (equivalent to 38 weeks after fertilization) is the end of the last trimester of pregnancy, the fetus is about 480 mm long, weighs about 3400 g, but each fetus is an individual. individual bodies, so fetal size and weight are approximate, not determinants of fetal well-being.
If there are no signs of labor on the due date, don't worry. The due date is just an estimate of the 40 weeks of pregnancy, so it doesn't matter if you don't go into labor on your due date. And of course it's actually possible to go into labor before or after your due date, that's completely normal!

14. Week 41 and 42

Normal pregnancy allows labor after 40 weeks, specifically labor at 41 and 42 weeks. If after 42 weeks is abnormal, and there is a high risk of complications for the fetus. In this situation, the obstetrician will consult, discuss with the pregnant woman and give appropriate indications.
In order for the birth process to go smoothly, in the last months, pregnant women should have regular antenatal check-ups to monitor the status of amniotic fluid, fetal heart rate, weight, and position of the fetus for timely interventions if there are any abnormalities. often occurs.
To protect the health of mother and baby comprehensively as well as help mothers feel more secure during labor, Vinmec offers a Package Maternity Care Program. With this package, the mother will have regular antenatal check-ups and routine tests to monitor her health. The fetus is monitored for fetal heart rate and uterine contractions with an obstetric monitor at 37-40 weeks of gestation to predict the exact time of delivery. During labor, the mother will be given pain-relieving techniques during and after birth such as: epidural anesthesia, pudendal nerve anesthesia (applied to normal delivery), postoperative pain treatment (applied to childbirth). surgery). In particular, Vinmec is deploying cold plasma services to help wounds heal quickly such as: cesarean section, perineal stitches, baby umbilical cord, and lactation to avoid swelling, redness, infection, and dryness. , flat, beautiful straight edge, little pain, no bruising, no convexity.
If you have a need to use maternity services at Vinmec, please register directly at the website to be served.

Hình ảnh khách hàng sinh thường tại Vinmec
Hình ảnh khách hàng sinh thường tại Vinmec

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