Patient's question:
Medical Description: My girlfriend had her period on the 4th, and we had sex on the 9th. She took birth control pills the same day. Now her period is still coming. Is she pregnant?Past Treatment and Effects: Want to know if she is pregnant.
Desired Help: Want to know if she is pregnant.
Doctor's answer:
After pregnancy, menstruation generally does not occur. Usually, menstruation indicates that one is not pregnant, because after pregnancy, a woman's body produces a significant increase in progesterone, which suppresses the secretion of estrogen, leading to the cessation of menstruation in women. However, some women may still have menstruation after pregnancy, but this is a minority case.However, it is important to note that menstruation and vaginal bleeding are two different things. After pregnancy, there may be bleeding, which could be mistaken for menstruation due to incomplete miscarriage or implantation bleeding. So, it is not always the case that pregnancy means the absence of "menstruation"—this is a false menstruation. It is merely vaginal bleeding. In this situation, the amount of vaginal bleeding is usually light and short.