Circulatory system diseases // Pregnancy by week

3 Weeks Pregnant

3 week of pregnancy

3 Weeks Pregnant Photo At the end of the second and beginning of the third week, there is a conception of the child.Obstetricians calculate gestational age from the beginning of last menstrual period and the very conception occurs in the middle of the menstrual cycle.The third week of obstetrics is actually the first week your child is still a mystery for future moms.Since then, the male cell merge with the female, is approximately three - six hours.Going forward, even for a second without stopping, many millions of sperm in a hurry to his goal.By doing a difficult way, they encounter numerous obstacles , resulting in the exclusion of the weak and as a result close to the goal several strong sperm.Sperm tails beat synchronously and thus make the egg slowly move counterclockwise.But in the process of fertilization is one part and the most active sperm, and then start the first cell division and lightning changes the body, which is necessary to maintain pregnancy.The woman's body change chemical re

actions, modified innervation of the uterus, dropping the body's defenses - immune system (so that the body mistakenly not ottorgnul fertilized egg, taking her by the tumor).Pregnancy week by 3 can not be called and the result of fetal eggs, but it was during this week the future embryo is growing, and it doubles the number of cells.After fertilization, the embryo has 32 cells, and the shape is very reminiscent of mulberry and is called a morula.Morula is inside the cavity and its formation begins embryogenesis (development of the baby and the body organs).On the fifth day the wall morula becomes a two-layer, and an outer layer of cells gives rise to further process the trophoblast, from which then forms the placenta, and fetal membranes.By the end of three weeks, the number of cells increased to 250, and is shaped like a hollow ball with a diameter of 0.1 - 0.2 mm.Of the two parent cells during fertilization produced one.This zygote with a unique genetic code that determines the sex of the character, the color of the eyes of a child.Zygote on the seventh day moves slowly to the uterus, taking with him the first time food - the corpus luteum.After attaching to the uterus it becomes very important what and how the expectant mother eats.Now the development of the embryo depends on the mental and physical condition of the expectant mother.There comes a process of restructuring of the female organism

Signs of pregnancy at the 3rd week

At this stage of pregnancy symptoms in women is mild, because the body has just started changing the signs themselves are not distinct.Women on Sensation 3 week associated with the increase in blood progesterone and chorionic gonadotropin.Their influence and change work systems of the body and internal organs.Changing himself metabolism, because the problem of hormones to create appropriate conditions for the normal development of the child.And as a consequence of the changes - the termination of a woman's menstruation.This is not the only sign.Gynecologists distinguish 3 groups of signs: tentative, credible and objective.Suspected or imaginary pregnancy symptoms are not accurate and are psychogenic.They arise because of the strong desire of women to become pregnant.The alleged manifest symptoms in the absence of appetite, sensitivity to odors appears, and salivation.Probable signs of pregnancy appear to change the genitalia, breast augmentation, and delay menstruation.And the objective signs of pregnancy is diagnosed unquestionable, and this detectable body, fetal movements and his heartbeat.This really identify only 16-17 weeks of pregnancy.

But in the first week of pregnancy symptoms appear, not all women.It so happens that pregnancy is not immediately detected and symptoms within a few months.And often the first sign of pregnancy is ... cold.This occurs from the fact that hormonal changes and the woman may experience chills with fever and feeling the heat.You may receive the nasal congestion and runny nose, feeling of weakness, and insomnia.Really can join ARI, due to lower immunity due to pregnancy.This feature has to delay monthly lets know about the changes in a woman's body, but to regard every cold as pregnancy is not necessary.

Follow the signs in the third week is the highlight in the form of spots on the underwear smearing brown or cream color, pain in the chest.Can bother cystitis (frequent urination), the first time after conception and thrush .The presence of abdominal distention and constipation or diarrhea (diarrhea) , nausea, vomiting, drooling appear after the delay period but delicate women feel before.The appearance of heartburn and epigastric discomfort in the stomach in conjunction with early toxicity.Soreness in the chest and nipples, enlarged uterus and no monthly gives reason to believe that you are pregnant.But do not jump to conclusions and wait for the delay and run the test for pregnancy .

2 week of pregnancy 4 weeks of pregnancy

All the weeks of pregnancy

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