MICROANATOMY

Detailed explanation-1: -While your body is slowly shedding that uterine lining, the clock is ticking on ovulation-and your next egg shows up while you’re still bleeding from the previous month’s (non-fertilized) egg. So you’re already fertile again-which means you can get pregnant on your period.

Detailed explanation-2: -One of the ovaries releases an egg. And then, if the egg isn’t fertilized or a fertilized egg doesn’t attach to the lining of the uterus (implant), the endometrium sheds from the uterus as a menstrual period. Menstrual phase (period). The thickened lining of the uterus (endometrium) is shed, causing menstrual bleeding.

Detailed explanation-3: -When a fertilized egg does implant, a hormone called human chorionic gonadotropin (hCG) begins to be produced in the uterus. This is the hormone that a pregnancy test measures. It prevents the uterine lining from being shed, so the woman does not have a period.