From what week does the 3rd trimester of pregnancy begin? Features of the period, fetal development

2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21

Very often pregnant women are confused and cannot understand which week the 3rd trimester starts from. Sometimes doubts concern its duration and ongoing events.

How to determine the 3rd trimester of pregnancy?

Very often, expectant mothers are perplexed, because they do not know what week the 3rd trimester of pregnancy begins from. There are several variations, according to which this period falls on different periods.

But the division of pregnancy into periods is based on a single principle. In the first trimester, important organs and systems begin to form in the fetus. In the second, it improves and grows. 6 months of pregnancy completes this trimester, and the woman begins to feel that she will soon become a mother. The first movements and pushes of the baby occur in the third trimester. During this period, the baby mainly gains fat mass, his body systems are endowed with important qualities that can ensure viability in the first weeks after birth.

Some classifications state that the beginning of the 3rd trimester is mapped to the 24th week. Others begin the countdown of this period from the 26thand even the 28th week.

Now doctors very rarely calculate trimesters, preferring to use only weeks to calculate.

How long is the 3rd trimester?

The beginning of labor activity of every woman depends entirely on her body. Some carry out pregnancies, while others give birth prematurely. And all this is considered to be the norm.

Don't forget that doctors can only estimate the approximate term of conception. But be that as it may, from which week the 3rd trimester begins, it still remains an open question. It is important that normally this period lasts at least 12 and no more than 16 weeks.

The final stage of pregnancy should not end before the due date, so it is important to follow the recommendations of doctors, often be in the fresh air, eat a balanced diet and exclude physical and emotional stress.

Regular consultations with a supervising doctor will help you quickly get rid of your he alth problems.

What happens in the 3rd trimester?

You already know when the 3rd trimester of pregnancy begins, so it's time to talk about what happens during this period with the expectant mother. The 6th month of pregnancy preceding the final stage forms a stable emotional state of the woman. As a rule, appetite preferences remain stable, the likelihood of developing a depressive state decreases, and increased fatigue disappears.

An important stage of the last trimester is going on maternity leave. To thattime, it becomes more difficult for a woman to do her usual work, so she should take more rest.

After the onset of the third trimester, expectant mothers begin to actively add kilograms. During this period, you need to carefully monitor your own nutrition, because excess fat will be deposited both in the woman and in the baby.

A large baby can make childbirth much more difficult, and sometimes cause a caesarean section. Also, excess weight often causes varicose veins and hypertension.

Third trimester: processes in the female body

At the beginning of this period, the distance from the bottom of the uterus to the navel is 2-3 cm. Gradually, the uterus begins to press the internal organs of the female body and move them up. As a result, the movements of the diaphragm are disturbed, there is a feeling of discomfort under the ribs, shortness of breath and shortness of breath when walking.

At this time, a woman gains 400 g weekly. Toward the end of the 7th month, expectant mothers first experience training contractions, which most often proceed painlessly. A large belly can cause insomnia, so it's best to get used to sleeping on your side right away.

Signs that a pregnant woman may experience during this period:

enhanced highlights;

· digestive problems;

sprain in the lower abdomen, pain syndrome;

· discharge of colostrum from the breast;

Vomiting and nausea;

practice bouts;

· convulsions incalf area;

active fetal behavior;

· clumsy body movements.

3rd trimester nutrition

At this time, it is more important than ever to eat right. Experts say that a balanced meal significantly reduces the likelihood of developing preeclampsia. Every mother-to-be is able to follow the rules that will help her and the child.

The diet should include lean fish and meat, but these foods should not be eaten in the evening. You should completely forget about chocolate, nuts, citrus fruits, spicy, sour, fried foods, conservation.

But nutrition in the 3rd trimester should not be limited. Do not lean on sweet and starchy foods, you should give preference to vegetables and cereals. The fiber found in these food categories will help to normalize digestion and give you a feeling of satiety for a long time.

Norms of fetal development during this period

During the course of pregnancy, the expectant mother undergoes a lot of procedures that allow you to monitor the condition of the fetus and its level of development, including ultrasound. The 3rd trimester is the final one, and this study is very important. Ultrasound diagnostics is a way to detect severe fetal developmental disorders, it is carried out in combination with testing for hormones.

Goals of the third routine screening

Ultrasound helps to study the position of the fetus in the womb. The 3rd trimester is a difficult period in pregnancy, so it is so important to play it safe and predetermine a birth management strategy that willbe used.

Ultrasound examination of the fetus allows you to clarify its anatomical parameters: approximate weight, size, compliance with the current stage of pregnancy. It is important not only to know from which week the 3rd trimester begins, but also to fix defects and infections that were not detected earlier.

Screening in the last trimester provides data on changes that have occurred in the cerebral cortex. In addition, this procedure is used to measure the volume of amniotic fluid and exclude possible complications during childbirth.

It is very important to pass the examinations prescribed by the attending doctor in a timely manner. Systematicity is not a whim of a doctor, but a vital necessity for both a pregnant woman and a baby. Stressful situations and poor environmental conditions are unfavorable external conditions that adversely affect the he alth of expectant mothers and their children.

Deviation of water volumes can indicate significant changes in the anatomy of a developing child. Ultrasound is also a chance to detect complications that may interfere with natural childbirth. We are talking about the development of neoplasms, insolvency of the cervix.

A pregnant woman should think about the baby first, so it is so important to eat right, not worry and undergo the procedures prescribed by the doctor.