If a woman is already menstruating, it is impossible to get pregnant in this case. This is because the union of a woman’s egg with a man’s sperm and its arrival in the uterine cavity will inhibit the development of follicles in the ovaries, and will inhibit ovulation. If a woman does not have an egg in her ovaries, she will not have a period, so she will not have a period when she is pregnant. If a woman is pregnant and has vaginal bleeding, it may be a preterm miscarriage. Patients should also pay attention to bed rest, not to do heavy physical labor and not to overwork, and pay attention to nutrition, eating more soy products and foods with high protein.