Does Menstrual Cycle Start At Beginning Or End Of Period?
Does Menstrual Cycle Start At Beginning Or End Of Period? A menstrual cycle begins with the first day of your period, or menstruation [MEN-stroo-AY-shuhn] and starts over again when the next period begins. Throughout a monthly menstrual cycle, your body makes different amounts of chemicals called hormones to prepare for pregnancy. Is it 30 days