If you have taken the pill and your period is half a month early, first of all, this is abnormal because normally, it is normal for your period to be 5-7 days early. The bleeding at this time may not be menstrual, but may be withdrawal bleeding, which is an adverse reaction caused by the contraceptive pill. At this time, you should go to the hospital for an ultrasound to determine the thickness of the endometrium, and according to the situation, you can take some oral anti-inflammatory drugs, including some hemostatic drugs, to stop the bleeding. Since this bleeding may cause a delay in the next menstrual period, it can be observed. If the bleeding continues for more than 7 days, the bleeding can be stopped by intravenous drip if necessary to avoid prolonged bleeding, which may cause anemia and affect the body.