Pregnancy and childbirth, pregnancy calendar, birth of the child, development of the child, health of children.

In the first 8 weeks the fruit from a unicell what was at conception, turns to an embryo already reminding the person.

Approximately for 14th day menstrualnogo a cycle jajtsekletka ripens and it is ready to fertilisation. It is deduced from jaichnika and gets in matochnuju (fallopievu) a pipe where keeps viability till 24 o'clock; if fertilisation does not occur, jajtsekletka perishes and leaves with matochnymi vydelenijami during following menstruatsii.

In time orgazma the man throws up in a vagina of the woman from 200 to 400 million spermatozoidov. The sperm Considerable quantity follows back, a part spermatozoidov, having appeared in a female organism, does not achieve the object, but their part through a uterus neck gets to a cavity of a uterus and therefrom - in one of fallopievyh pipes. Here spermatozoidy can keep viability within 48 hours.

Sperm contains the substance dissolving a cover jajtsekletki that allows spermatozoidu to take root into it. After that other man's cage gets inside cannot. Spermatozoid merges with jajtsekletkoj, and there is a monocelled germ - a zygote.

Moving ahead downwards on fallopievoj to a pipe, impregnated jajtsekletka starts to share on the increasing and bolshee number of cages.

Approximately for 4th day after fertilisation jajtsekletka reaches uterus cavities. By this time it represents a sphere with a liquid. It is still very small and indiscernible, but already contains about 100 cages. The next days jajtsekletka moves in a uterus.

In the end of 3rd week impregnated jajtsekletka starts to take root into a soft wall of a uterus. It is called as implantation. As soon as jajtsekletka it will reliably be attached to a wall, conception process is finished. Fibers of external cages of an embryo get into a layer epitelija, covering a uterus, and incorporate to blood vessels of mother subsequently to form a placenta. Other cages will develop in an umbilical cord and the covers protecting a fruit. Internal cages will be divided into three layers and will give rise to various bodies and fabrics.

Five-six weeks

• The embryo floats in the bubble filled with a liquid.
• There is a brain, a backbone, the central nervous system.
• On a head four hollows are future eyes and ears of the child.
• Digestive system, mouth and jaw in embryo.
• The stomach and thorax develop. Heart looks as camber on a thorax. By the end of this period it will start to fight.
• The system of blood vessels is formed.
• Four tiny rudiments of finitenesses were formed.
• Length: 6мм. An embryo in size about an apple stone.

Seven weeks

• The huge head is inclined to a breast. The person is formed, but eyes still on each side and are densely closed. Under a thin skin of eyes the black pigment is visible.
• Hands and feet with splittings on the ends which will turn to fingers are well distinguishable.
• Heart starts to overtake blood on an embryo body.
• There was a central nervous system.
• Development of bone cages has begun.
• The embryo already has lungs, an intestines, a liver, kidneys and internal genitals, but all it is not quite generated yet.
• Length: 1,3 the Embryo in size with small vinogradinku see.

Eight weeks

• The embryo became a fruit, now it is already possible to name it the baby.
• All main internal bodies were generated, but they still in embryo and do not occupy definitive position in a body.
• The person was defined: the nose had a tip, nostrils have appeared, the mouth was formed. Already there is a language.
• The internal ear is formed.
• Fingers were issued, but all of them are still pulled together by membranes.
• Hands and feet became longer, shoulders, elbows, hips and knees were designated.
• The fruit is mobile enough, but you still do not feel it.
• Length: 2,5 the Fruit in size about a strawberry berry see.

Twins

One twins are necessary on the average on 80 beremennostej. Probability of that you will have twins, increases, if in your family twins already were born.

Raznojajtsevye twins: 2 jajtsekletki are impregnated 2-mja spermatozoidami (meet three times more often odnojajtsevyh twins). At each of them the placenta, they can be raznopolymi, and degree of similarity at them is no more, than at usual brothers and sisters.

odnojajtsevye twins: impregnated jajtsekletka shares on 2 (3 and more) independent parts, and from everyone the fruit develops. At them the general placenta, an identical floor, the general genetic code.

To future mum

1 week

For health of the future kid important both eutrophy of mum, and its mental spirit. And the eutrophy is very important also before conception.

2 week

The test for pregnancy can not show yet positive result, but the nearest some days it will occur precisely.

The special role is played by folic acid which in the first 12 weeks saves the child from development of many congenital defects.

In day assumed menstruatsii there can be a weak bleeding, but the most true sign of pregnancy - absence menstrualnogo a cycle.

3 week

There can be inexplicable irritability, fatigue, there is a swelling of mammary glands, there is a sensitivity of nipples.

With 18 for 60 days after fertilisation the fruit is most sensitive to action of harmful factors.

4 week

At this stage pregnancy can confirm only the blood analysis. Plodnoe egg allocates a special hormone - horionichesky gonadotropin (HG) which is present at your blood. It is possible to take advantage of the house test on HG in urine, but last is not so reliable, as term very small.

While you guess, will come your monthly or not, you can have the symptoms reminding predmenstrualnoe a condition: a nausea, breast swelling.

5 week

Drowsiness, appetite decrease, nausea and even vomiting are possible a headache, speeded up mocheispuskanie.

At this particular time danger of an abortion is especially great.

6 week

If you cannot do without "delights" of an early toxicosis this week the nausea can amplify.

The smell of fried food and tobacco quite often make a morning sick. The skin can become dry, shelled or to become covered by stains. At ultrasonic research it is already possible to see movements of the future kid.

7 week

At you the head can be turned, there will be a feeling of weariness and even there will be a faint, especially if you had to stand long standing or you have rendered in crowd. Try to have a rest as much as possible. Do not worry, if during these periods you do not have inclination to the husband, it is natural to your position. Probably, your sexual relations now even it is better than they will be in the second trimester. Areoly mammary glands have darkened.

8 week

Your uterus has started to increase, but it is still imperceptible. Define it your gynecologist during survey can and you - your things became slightly rather small. Do not worry, if you test unpleasant symptoms: it is an organism it is adjusted on a pregnancy wave, starts to communicate with the future child.