From what week does the trimester of pregnancy begin? Features of the period, development of the fetus
Very often pregnant women are deceived and can not figure out which week begins the trimester. Sometimes doubts concern its duration and current events.
How to determine the 3rd trimester of pregnancy?
Very often, future mothers are puzzled, because they do not know from what week the trimester of pregnancy begins. There are several variations, according to which this period falls on different periods.
But at the heart of the division of pregnancy into periods is a single principle. In the first trimester, the fetus begins to form important organs and systems. In the second, he improves and grows. 6 months of pregnancy completes this trimester, and the woman begins to feel that soon will become a mother. The first movements and tremors of the child occur in the third trimester. During this period, the baby is mostly gaining fat mass, the systems of his body are endowed with important qualities that can ensure viability in the first weeks after birth.
Some classifications claim that the beginning of the third trimester is compared with the 24th week. Others start counting this period from the 26th or even 28th week.
Now doctors rarely calculate trimesters, preferring to use only weeks for counting.
How long is the 3rd trimester?
The beginning of the labor of every woman is completely dependent on her body. Some overpay pregnancy, while others give birth before the term. And all this is usually considered a norm.
Do not forget that doctors can only approximately determine the term of conception. But anyway, from what week begins the trimester, still remains an open question. It is important that in the norm this period lasts not less than 12 and not more than 16 weeks.
The final stage of pregnancy should not be completed before the due date, therefore it is important to follow the recommendations of doctors, often to be outdoors, to eat balanced and to exclude physical and emotional stress.
Regular consultations with an observant doctor will help to quickly get rid of the health problems that have arisen.
What happens in the 3rd trimester?
You already know when the trimester of pregnancy begins, so it's time to talk about what happens in this period with the future mother. Preceding the final stage of 6 months of pregnancy forms a stable emotional state of a woman. As a rule, appetite preferences remain stable, the probability of developing a depressed state decreases, and fatigue goes away.
An important stage of the last trimester is a maternity leave. By this time, it becomes more difficult for a woman to do the usual work, so she should rest more.
After the third trimester, future mothers begin to actively add kilograms. During this period, you need to carefully monitor your own diet, because excess fat will be laid off both by the woman and the baby.
The large weight of the child can significantly complicate childbirth, and sometimes cause caesarean section. Also, excess weight often becomes the cause of varicose veins and hypertension.
The third trimester: the processes occurring 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 upwards. As a consequence, the movement of the diaphragm is disturbed, there is a feeling of discomfort under the ribs, shortness of breath and shortness of breath when walking.
At this time, the woman gets weekly on 400 g. Near the end of the 7th month, the future mothers first encounter training fights, which most often proceed painlessly. A large belly can cause insomnia, so it's best to immediately get used to sleeping on your side.
The symptoms that a pregnant woman can detect during this period:
· Enhanced secretion;
· Problems of the digestive system;
· Sprain in the lower abdomen, pain syndrome;
· Allocation of colostrum from the breast;
· Vomiting and nausea;
· Training fights;
· Convulsions in the calf area;
· Active behavior of the fetus;
· Awkward gestures.
Nutrition in the 3rd trimester of pregnancy
At this time, it is more important than ever to eat right. Experts say that a balanced meal at times reduces the likelihood of developing gestosis. Each future mother is able to follow the rules that will help her and the baby.
In the diet you need to include lean fish and meat, but these products should not be eaten in the evening. Completely forget about chocolate, nuts, citrus, spicy, sour, fried foods, preservation.
But nutrition in the 3rd trimester should not be limited. It is not necessary to lean on sweet and flour dishes, you should give preference to vegetables and cereals. Fiber, which is contained in these categories of products, will help to normalize digestion and will give a feeling of satiety for a long time.
Fetal development rates during this period
During the course of pregnancy, the expectant mother undergoes a lot of procedures that allow you to track the fetus and its level of development, including ultrasound. The 3rd trimester is final, and this study is very important. Ultrasound diagnosis is a way to detect severe disorders of fetal development, it is performed in conjunction with the delivery of hormone tests.
Objectives of the third planned screening
To study the position of the fetus in the womb helps ultrasound. The 3 trimester is a difficult period in pregnancy, so it is so important to insure yourself and determine the birth control strategy that will be used in advance.
Ultrasound examination of the fetus makes it possible to refine its anatomical parameters: approximate weight, size, correspondence to the current stage of pregnancy. It is important not only to know from which week the trimester starts, but also to detect vices in time, infections not previously detected.
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 to avoid possible complications in the process of childbirth.
It is very important to pass the examinations appointed 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 a poor state of the environment are unfavorable external conditions that adversely affect the health of expectant mothers and their children.
The deviation of water volumes can indicate significant changes in the anatomy of a developing child. Ultrasound examination is also a chance to detect complications that can interfere with natural birth. We are talking about the development of neoplasms, incompetence of the cervix.
A pregnant woman should first of all think about the child, so it is so important to eat right, not worry and undergo the procedures prescribed by the doctor.