Intrauterine development of the child: the main stages

Intrauterine development of the child: the main stages

When you dream of becoming a mother, plan and worry, you want to know about your pregnancy from the first day, as well as about the stages of development of the baby.

About what happens to the child during all 40 weeks, read in our service “Pregnancy by weeks”. And today we will talk about the main stages of the development of the crumbs.

At first, the count goes by the day - every day the baby changes a lot, gradually becoming like a little person. Then its development goes at a slower pace, but almost every week important changes occur in the body.

First days

1 day. Conception occurs when a sperm cell meets an egg cell to form a single cell, slightly smaller in size than a grain of salt. This is already a future baby who inherited 23 chromosomes from his father and as much from his mother. This small cell already contains a complex genetic plan that determines the sex of the baby, its height and even the color of the eyes.

3-4 day. A fertilized egg (zygote) moves down the tube into the uterus, where the lining of the uterus is ready for implantation.

5-9 days. During these few days, the zygote grows into the mucous membrane of the uterine cavity and is already beginning to receive nutrition.

10-14 days. Now the future mother just stops the menstrual cycle, because the baby declares its existence through the chemical composition of the placenta and placental hormones.

20 day. The crumbs begin to form the brain, including the spinal and nervous system.

21 day. A small heart begins to beat.

28 day. At this stage, the child forms the muscles and spine, legs, arms, ears, funny visual bubbles appear, which will soon become full-fledged eyes.

30 day. Do not believe it, but in just one month the baby has grown 10 thousand times compared with the size of the fertilized egg. It continues to grow just as fast. It increases blood flow, which pumps the heart through the circulatory system. The placenta now forms a unique barrier that separates the mother’s blood from the baby’s blood, but at the same time allows the embryo to receive a sufficient amount of nutrients and oxygen.

35 day. You can already make out fingers on your baby.Eyes begin to darken (as pigment develops).

40 day. The brain of the child is actively working and "sends signals" that can be registered with the help of special devices.

Intrauterine development of the child: the main stages - image number 1

Important weeks

6 week. The brain begins to control the movements of the organs and muscles of the baby, the liver forms blood cells. Menstruation is gone again, and then your doubts about a possible pregnancy are confirmed.

7 week. The crumb begins to move actively, and its movements become spontaneous. It forms the jaw, gums and rudiments of milk teeth. Eyelids will soon close and open only at the beginning of the third trimester.

8 week. The growth of the baby is already 2.5 cm. Officially, it is no longer called an embryo, but a fetus. Accordingly, everything that a fetus has will be in an adult. The heart has been beating for more than a month, there are already digestive juices in the stomach, the kidneys are starting to function. Together with the nervous system, 40 muscle nodes begin to act. Now you can communicate with the baby, because he begins to respond to stroking the abdomen.

Week 9. The baby has its own fingerprints - skin pattern is different.Now he can also show fists and trains to bend his fingers.

10 week. The size of the uterus doubles in size. A crumb can wrinkle his forehead (imagine how fun it is), squint and swallow.

11 week. For three weeks the toddler grew twice more - now its growth is already 5 cm. His face continues to form, and muscular movements become more and more coordinated.

12 week. The kid is already sleeping and waking up, he likes to train his muscles and try his skills. Every now and then he bends his fingers and toes, turns his head, opens and closes his mouth. When you stroke your tummy, the baby bends the fingers into a cam. He breathes amnion (water jacket), developing his respiratory system. Eye color becomes darker.

13 week. Hair begins to grow on the head, it is already possible to distinguish the genitals (if, of course, the baby turns on ultrasound, as it should).

Read also:How to choose a name for the child: tips for future parents

Intrauterine development of the child: the main stages - image number 2

Important months

From the second trimester of pregnancy, the baby does not develop as actively as before. However, previously established organs and functions are constantly being improved.

4 month. At this stage, the baby has already grown to 20-25 cm, and weighs about 250 g. The tummy is already becoming noticeable to others (of course, if you did not skillfully hide it). The child hears the voice of the mother, her heartbeat and the noises of the “big world.” Now the umbilical cord is a complex device that helps the smooth transfer of 284 liters of fluid per day and ends a circular circulation of fluid every 30 seconds.

5 month. You already feel the baby moving, he has grown to 30.5 cm. He responds with loud and sharp sounds with active jolts.

Mother forumka Svetlana shares history:“I remember how I was dumbfounded when my son first started pushing in his stomach. Such mixed feelings were: worried, suddenly something was not so good, and then I realized that it was a pen or a leg of my baby. I called my husband and cried with happiness. Pregnancy is the best time in my life. How did I live before without my baby? ”

6 month. Fat and sweat glands begin to function actively. A special lubricant appears on the body of the child, protecting its sensitive skin from the surrounding fluid. With proper care, the baby born on such a period can already survive.

7 month. The child hears well already and reacts to a bright light, he develops a sense of taste, and he feels any touch from the outside world.Now your son or daughter already knows mother's voice.

8 month. The skin becomes more dense, the fatty substance is deposited, which will serve the crumbs of nutrition and protection. The amount of antibodies in the blood increases constantly. Now it absorbs about 4 liters of amniotic fluid every day, which, in turn, is updated every 3 hours.

9 month. An average pregnancy lasts 280 days from the first day of your last menstruation. Toddlers are born most often between 266 and 294 during the day. The weight is 3-4 kg, and in a tiny heart about 1,100 liters of blood flow daily. The baby is ready for its birth.

Now you just have to wait for the birth of your crumbs and prepare for the happiest time in your life.

Related news

  • How to make a bouquet of socks with your own hands
  • Boats, money and one relative father
  • Egypt, Hurghada, hotel Melia Pharaoh 5
  • Exclusive 1960 Bentley with Mercedes-Benz bodywork
  • Poems for children and parents. Kirill Avdeenko (family reading)
  • Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages

    Intrauterine development of the child: the main stages