A sudden delay in a woman's period can be explained in several ways, the most common being pregnancy. Technically, a pregnant woman does not have her period. Let us first recall what these blood flows are due to in women. In order to prepare the body to accommodate a possible pregnancy, the inner lining of the uterus thickens under the action of estrogen throughout the cycle. Once the egg is released, if no fertilization takes place, the uterus expels the inner lining of the endometrium which was originally intended to be used for the implantation of a fertilized egg. The expulsion of this tissue debris, mixed with blood, constitutes menstruation.
However, what if the male gamete/female gamete encounter occurs during the period of ovulation? In this case, the egg thus fertilized comes to nest in the internal part of the endometrium which was to be eliminated in the form of menstruation. How? 'Or' What ? Instead of falling drastically, as with each cycle without fertilization, the blood level of progesterone will continue to rise gradually in order to maintain the uterine lining. This hormonal condition guarantees the maintenance of the embryo in place and prevents the periods from flowing in the pregnant woman.
You wonder then, why such a pregnant woman claims to have had her period during her first months of pregnancy ? The explanation could be elsewhere than in menstruation. Indeed, it happens, in 20 to 25% of cases, that a woman in early pregnancy sees blood flowing. However, this bleeding, although it looks like it, is not due to menstruation. These are, in the majority of cases, small brownish spots that reflect a placental problem or a hormonal imbalance. The hypothesis of menstruation in pregnant women therefore continues to be ruled out.
In all cases, bleeding in early pregnancy must question. If you are pregnant and think you are having your period when you see blood flowing, consult your gynecologist without delay to determine the source. In the worst case, especially if the bleeding is accompanied by cramps and pain, it could be a pathology of pregnancy, such as miscarriage or ectopic pregnancy.
In rare cases, a pregnant woman may have a period during the first trimester. However, this is an exceptional occurrence that affects only one in 1,000 women. Here, the pregnant woman does indeed have her period, which is called birthday period. Despite pregnancy, blood flows on the usual date of menstruation, without this threatening the life of the embryo. According to specialists, this rare persistence of periods in pregnant women is due to hormonal dysfunction. Pregnancy follow-up with the gynecologist is still necessary in order to rule out the possibility of a pathology.
Another extremely rare phenomenon in pregnant women, the denial of pregnancy can cause the latter to continue to have their periods normally. A woman who denies or is unaware of her pregnancy causes her body to act as if nothing had happened, and therefore to continue the rhythm of her menstruation. In this case, none of the other pregnancy symptoms occur (nausea, headache, breast swelling). The denial of pregnancy, and therefore the rules of the pregnant woman, does not stop until childbirth, or much earlier in the case of partial denial.