Why Did I Miss My Period? Most women have about 11 to 13 menstrual periods every year, give or take a few, and many women tend to average out at about one period per month, so it’s important to understand the reasons for missed periods. A missed period is often a cause of stress and worry in girls and women, particularly because reasons for missed periods often include one of the signs of pregnancy. However, missed periods are not always a reason for worry and are not always a sign of pregnancy. In fact, missed periods are relatively common in Continue reading