The pill is effective when taken within 72 hours after intercourse and is an emergency contraceptive. The pill is a hormonal drug that prevents conception by inhibiting the union of egg and sperm. The side effects of the pill are endocrine disruption, irregular menstrual cycle or a small amount of vaginal bleeding after taking it. It is recommended that people who are not prepared for pregnancy should take protective measures for their health. It is recommended that people who are not ready to conceive should take precautions for their health. They should keep their pubic area clean, develop good living habits, wash before and after sex, avoid a history of unclean sex, and prohibit sex during menstruation to avoid gynecological diseases.