It is possible for a woman to have her period twice in a month, although it is not very common. There are several factors that can cause this, such as hormonal imbalances, stress, changes in weight or exercise routine, or certain medical conditions. However, having two periods in one month can also be an early sign of pregnancy. If you are sexually active and experiencing other symptoms like fatigue, breast tenderness, nausea, frequent urination, or missed periods in subsequent months, it would be advisable to take a pregnancy test or consult with your healthcare provider for further evaluation.