All are accustomed to the expression that the pregnancy lasts 9 months. In the civil calendar it turns out that way. But midwives have their own calendar, where every month exactly 4 weeks.
Thus, a 40-week pregnancy (280 days) consists of 10 obstetric months. So it is really more convenient to count, because the days in the usual calendar are distributed unevenly over the months: then 30 days, then 31, or even altogether 28! A midwifery calendar allows you to calculate everything extremely accurately.
The future child.
Growth by the end of 1 month: 0.36 mm in width and 1 mm in length.
About the second week of the first month, the egg is fertilized. A week later implantation of the fetal egg in the uterus takes place. Around it gradually forms the placenta, umbilical cord, amniotic fluid, and the fetal egg turns into an embryo.
Finally, the baby’s autonomic nutrition system will be formed by the 12th week of pregnancy, and now the special temporary gland-the yellow body-helps the placenta.
By the end of the first month, the child already has ectoderm – the rudiment of brain cells, mysoderma – the future blood, skeleton, muscles, genitourinary system, and endoderm – the basis for the formation of glands and gastrointestinal tract.
Mom experiences all the charms of hormonal changes in the body. Estrogen and progesterone, which begins to produce its body, lead not only to unpleasant toxicosis, but also to psychological difficulties: increased excitability, tearfulness, depressive mood.
By the end of the first month, a woman still may not know that she is pregnant. However, the first signs can be considered mood swings and frequent urination, as well as an increase and pain in the chest and drowsiness.
If desired, you can make a test for hCG (human chorionic gonadotropin) – a hormone, the high content of which in the blood there is a clear sign of pregnancy. But it’s better to wait with the test until 6-7 weeks after the start of the last menstruation. Then the tests will be more accurate.
Conception – 1 month – 2 months