Will I still have my period after fertilization?

Human beings first exist in the mother's body in the form of a fertilized egg, which is mainly formed by the combination of a female egg and a male sperm. So if there is a fertilized egg in a woman's body, it means that she is pregnant. After fertilization, the female reproductive system will also undergo tremendous changes, such as the ovaries stopping ovulating, but will women still have menstruation after fertilization?

1. Will menstruation still occur after fertilization?

After a woman becomes pregnant, her ovaries stop releasing eggs and generally she will no longer have her period. However, a small number of women continue to menstruate during the early stages of pregnancy. In the early stages of pregnancy, the level of progesterone in a woman's body is low, the formation of the uterine decidua is not yet complete, and the ovaries still release mature eggs every month, so the uterus will still bleed periodically. This is why menstruation still occurs after pregnancy. However, since the placenta gradually forms and uterine bleeding stops after 3 months of pregnancy, the menstruation will not continue for more than 4 months after pregnancy.

2. Why do I still have my period when I am pregnant?

Reason 1: Fertilized egg implantation is unstable

[General situation]: Menstruation is the bleeding phenomenon caused by the necrosis and shedding of the endometrium after ovulation. In a sense, menstruation is the female uterus preparing for pregnancy. Under normal circumstances, if the fertilized egg successfully implants into the endometrium, the woman will not ovulate, and this kind of preparation will no longer be necessary. Therefore, menstruation will generally stop during pregnancy.

[Special circumstances]: Because the fertilized egg implantation is not stable, the placenta has not formed, and it is close to or on the day of menstruation, a mature egg will still be discharged and then discharged from the body along with the shedding of the endometrium, causing a small number of pregnant women to think they are having their "menstruation".

Reason 2: Endometrial shedding

[General situation]: After a woman becomes pregnant, her ovaries will secrete a large amount of progesterone, estrogen, etc. to promote the thickening of the endometrium, thereby providing a fertile "soil" for the implantation and growth of the fertilized egg. At this time, as the levels of estrogen and progesterone in women's bodies continue to increase, the endometrium will no longer shed, and women will no longer have menstruation.

[Special circumstances]: Due to individual differences and other reasons, some women's ovaries secrete relatively low levels of sex hormones, especially progesterone, after pregnancy, causing a small part of the endometrium to continue to shed. Therefore, these women will still have menstruation after pregnancy, but the amount of menstruation will be much less than normal. It is not until three months into pregnancy that the placenta is formed and the estrogen and progesterone levels in the female body are maintained at a relatively high level. At this time, the endometrium no longer sheds and menstruation no longer occurs.