The reproductive process: How babies are made Read more about The reproductive process: How babies are made
The whole cycle begins again for 28-30 days. Read more about The whole cycle begins again for 28-30 days.
Blood and the lining from the uterus flow out through the vagina as a period (menstruation) Read more about Blood and the lining from the uterus flow out through the vagina as a period (menstruation)