Taking birth control pills and having your period 10 days earlier is a side effect of the medication. You can continue to observe, if the menstruation can stop on its own, and the menstruation can return to normal afterward, you do not need to worry too much. If the menstrual period is prolonged and the subsequent periods are disturbed, you need to consult a doctor for examination and targeted treatment. Contraceptive pills belong to the hormone class of drugs, the use of which may affect a woman’s menstruation, resulting in early menstruation, delayed menstruation, prolonged menstruation and other menstrual disorders. If the effect is only transient and the menstruation returns to normal afterward, there is no need to deal with it. If the menstruation is still abnormal afterward, medical treatment is needed. Women should only use emergency contraceptive pills as a remedy and should not use them more than once. When using compound short-acting oral contraceptives, pay attention to the method of use to avoid missing the dose of menstrual disorders.