@von Hello, no need to worry but visit a gynecologist. There are many reasons your period might be coming more often than usual. Natural hormone fluctuations can cause this, as can lifestyle factors like being overweight or stressed. But having your period twice in one month could also be a sign of a medical condition that needs treatment. If your periods are heavy, often come more than once a month, or if you've had sex, check in with your doctor or nurse practitioner or visit a local health clinic. Some clotting problems, hormone problems, and sexually transmitted infections (STDs) can cause girls to bleed more. Thanks!!!