Emergency contraception usually means taking emergency contraceptive pills after intercourse to achieve the effect of contraception. If you don’t get your period after emergency contraception, that is, if you don’t get your period after taking the emergency contraceptive pill, you may consider that your period is delayed due to endocrine disorder, or you may be pregnant due to menopause, and you can determine whether you are pregnant by means of an early pregnancy test. 1. endocrine disorder: the progestin dose in the emergency contraceptive pill is large, and after taking it, it may cause hormonal disorder in the body, resulting in delayed ovulation or even no ovulation. Delayed menstruation or menopause may occur. If you confirm that you are not pregnant after taking a pregnancy test, you can wait for a month or so for the drug to be cleared by the body and then you will have your period normally. If the period is delayed for too long, go to the hospital for examination; 2. Already conceived: contraceptive failure may be caused by the expiration, expiration or improper way of taking the pill. You can go to the hospital to take blood test to determine whether you are pregnant or not. Usually keep a happy mood, avoid overworking, and try to avoid intercourse during this period without menstruation after emergency contraception.