Despite the fact that pregnancy is a physiological, that is, normal, condition of a woman, her offensive introduces certain disruptions into the body. Sometimes these failures can be so significant that they begin to border on the disease.
Down syndrome, according to doctors - a pure genetic coincidence. Why are children with Down syndrome born? What characterizes this deviation and is it possible to detect it in early pregnancy?
One of the signs of conception is the absence of menstruation. But there are situations when regular menstruation occurs during pregnancy, which are scanty, shorter in duration.
If the spermatozoon is implanted in the uterus, pregnancy sets in and the men do not come in. If conception does not occur, then the egg dies, the hormonal background decreases and the inner layer of the uterus is rejected. There comes another menstruation.