After taking the emergency contraceptive pill, you need to pay attention to any uncomfortable symptoms, such as vomiting, delayed menstruation, pain, bleeding and other phenomena need to take timely measures, breastfeeding women who take the emergency contraceptive pill should also suspend nursing. Emergency contraceptive pills have more adverse reactions and can cause adverse effects on the human body. hospital for clear reasons, may be contraceptive failure caused by pregnancy; 3, pain and bleeding timely medical care: after taking the pill, such as severe pain in the lower abdomen or irregular vaginal bleeding, should promptly go to the hospital to clarify the cause of timely treatment; 4, breastfeeding suspension: breastfeeding women who need to take emergency contraceptives, it is recommended to suspend breastfeeding for more than 3 days after taking the pill, during which the milk sucked out is not recommended to feed; 5. Postpone pregnancy plan after using the pill: After using the emergency contraceptive pill, it may make the quality of eggs decrease, and it is recommended to consider pregnancy after an interval of 3 menstrual periods; 6. Limitations of the effect: The emergency contraceptive pill is a temporary contraceptive act, and only has a contraceptive effect on the last sex after use. If you have sex after taking the pill, you still need to take conventional contraceptive methods; 7. Take it early: emergency contraceptive pill needs to be taken within 72 hours after unprotected sex, the earlier it is taken, the better the contraceptive effect. And the emergency contraceptive pill can only achieve the effect of contraception, if pregnancy has occurred, there is no point in taking, and can not achieve the role of induced abortion. It should be noted that the emergency contraceptive pill cannot achieve the effect of complete contraception, and pregnancy may still occur, and there is no protection against sexually transmitted diseases such as AIDS, and it is recommended that contraceptive acts such as the use of condoms are usually more effective. In addition, it is not recommended to use the emergency contraceptive pill several times, which may have adverse effects on the organism. The emergency contraceptive pill is suitable for people over 17 years of age. If you need emergency contraception under 17 years of age, you need to consult your doctor or pharmacist to decide whether you can use it. The use of emergency contraceptive pills is strictly forbidden for some people who are allergic to the ingredients of the drug.