Your menstrual cycle is usually 21-35 days long. If you have a shorter cycle, the chances are that you can get your period twice a month, but if you experience bleeding outside of this cycle, it could be due to conditions like cysts, [simple_tooltip text=fibroid tooltip=Non-cancerous growths that are made of the muscle and connective tissue of the uterus during the childbearing years of a woman. ]or even stress.