Three months took the second emergency contraceptive pill whether or not it depends on whether the menstrual period is normal, generally speaking this is more harmful to the body. Clinical common emergency contraceptive drugs are mainly levonorgestrel. Repeated use of levonorgestrel emergency contraceptive pills within a short period of time Repeated use of emergency contraceptive pills, although there have been no reports of other serious adverse consequences, may cause menstrual disorders due to short-term abnormalities in the body’s hormone levels. Adverse effects of emergency contraceptives such as levonorgestrel include menstrual changes, nausea, vomiting, breast tenderness, headache, abnormal uterine bleeding, etc. If the above symptoms do not go away on their own, one should go to the hospital promptly. The drug is contraindicated in cases of suspected or existing pregnancy, drug allergy, women over 40 years of age, breast or genital cancer, hepatic impairment, thrombophilia, cardiovascular and cerebrovascular diseases, diabetes mellitus, hyperlipidemia, and psychiatric abnormalities. Levonorgestrel is recommended to be used under the supervision of a clinician not more than twice a year, and the use of condoms is recommended on a daily basis.