/ / How the embryo develops in the first month of pregnancy: photos of the first month of pregnancy by weeks and days, video

How the embryo develops in the first month of pregnancy: photos of the first month of pregnancy by weeks and days, video

Most women in the first monthPregnancy even do not know about their interesting situation. The shape and size of the abdomen are practically unchanged. However, all the metamorphoses on this term are internal, and not external. Development of the embryo goes through several stages. The embryo gradually forms, changing every week. It is impossible to trace it independently, but it is easy to imagine how the new life is born in pictures.

An embryo, an embryo, or a fetus: how does it form

The period of pregnancy is counted from the moment of the last menstruation. In this case, conception and the preceding ovulation occur approximately 14 days later.
The first week is marked by the course of menstruation. In this case, the woman's body is adjusted to its new position. Of the many eggs, only 1 begins to ripen. The mucous surface of the uterus gradually departs. A new layer forms on the site of the rejected tissues. As such, there is no embryo yet. Even on ultrasound it is not always possible to trace these changes.

The second stage is indicated by the manifestation of the ovum,Which can be called a leader. It is concentrated in a kind of bubble that is present on the ovary. The end of this stage is the flow of ovulation. The vesicle bursts, after which the egg leaves the abdominal cavity of the woman. Again, it can not yet be called a fruit, since it is a very small formation, as can be seen from the photo, penetrating into the fallopian tube. For 1-2 days the future child is kept there. After that, it remains only to wait for spermatozoa. There are many sketchy videos about how their "meeting" occurs. Below is one of them.
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Development of the fetus: pictures of his early days

Up to 2 months, pregnancy is called embryonic, because the fetus is in a state of embryo.
Development of the embryo, which can be traced throughPresented pictures and photos, implies a meeting of the ovule and sperm. The result of their connection is a yellow spot, which is very important during the first month.
On a note! It is in the yellow spot that estrogen and progesterone are released, which are responsible for preserving the fetus.
The functioning of this body is associated withToxicosis. Usually, after all the responsibility for preserving the future child passes to the placenta, all the unpleasant manifestations of the first months of an interesting situation pass. This process is associated with 14-16 weeks.

As for the peculiarities of interestingPosition for 15-28 days, they are associated with the embryo introduction into the very thickness of the mucous membrane of the uterine cavity. At the same time on ultrasound, it is easy to trace the contours of the future child.

Photo embryos for weeks: 1 and 2 weeks

Every day of the embryonic period somethingInteresting. After all, the embryo acquires features characteristic of a real child, despite the fact that the stomach, as a rule, looks as before and does not give rise to a new life arising in it.
The first week is associated with the process of fertilization. There is a fusion of the female cell with the sperm. As a rule, everything flows in the fallopian tube, in its ampullar department. In the video below, you can follow the peculiarities of embryo origin.

Note! Only a few hours in 1-7 days is enough for a fertilized female cell to divide at a high speed in a geometric progression, after which it enters the uterus through the fallopian tube.
After division, a special organism is formed. Outwardly, it looks something like a blackberry, as you can see on one of the photos. At this stage, the embryo in gynecology is usually called morula. On day 7, it is usually introduced into the uterus. Other cells form the membrane and the umbilical cord. From the other cells will further develop the internal organs and tissues of the fetus.
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The second week of the 1st month of pregnancy is indicated by the dense implantation of morula into the mucous surface of the uterus. The fetus develops on days 8-14:
  • Placenta;
  • Umbilical cord;
  • The neural tube.

Photo of children in the abdomen by days: 3 and 4 weeks

Despite the fact that the stomach for the third weekPregnancy looks still, 15-21 days in development are very important. This stage is associated with the formation of the rudiments of the nervous, circulatory, respiratory, excretory, digestive systems.
In the photo you can see what the future child looks like. A wide plate forms. It is in this place that the fetus will later have a head. Day 21 is the beginning of the development of not only the brain.

On a note! At this stage of the first month of pregnancy, the heart begins to beat.

4 week with photo and description

In 22-28 days, as can be judged from the photo and video, the fetus is clearly seen on ultrasound. The period is associated with the continuation of the bookmark and the development of organs. There are rudiments:
  • Light;
  • Liver;
  • Kidney;
  • The spine.
The heart begins to function more actively. There are folds of the trunk, and by 25 day the neural tube is finally formed.

By the end of the initial period of the renewed state of the female body, the spine and the muscular system are formed. Also dimples appear on the head, which later become eyes.
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