If you do not get your period on oral contraceptives, you can stop taking the pill and observe it temporarily. Contraceptive pills refer to emergency contraceptive pills. Generally, after taking oral emergency contraceptive pills, it will have more or less effect on menstruation. After taking emergency contraceptive pills, due to the impact of external hormones on women’s normal menstrual cycle, clinical changes in menstruation may occur, manifested as early menstruation, spotting bleeding or no menstruation. If the above symptoms do not improve after stopping the pill, you can go to the hospital for a sex hormone test and an ultrasound examination to see if there are other problems. If there are no other problems, you can wait or take menstrual regulating drugs to induce menstruation. If you take regular short-acting oral contraceptives, you usually do not experience delayed menstruation because short-acting contraceptives have the effect of treating irregular menstruation and the menstrual cycle follows the length of the contraceptive cycle, and it is recommended to take less emergency contraceptives.