Emergency aftercare pills, currently commonly used are levonorgestrel tablets and mifepristone tablets, etc. Different contraceptive pills have different side effects. Side effects of levonorgestrel tablets include: early or delayed menstruation, mild nausea, vomiting, breast tenderness, headache, dizziness, fatigue and other symptoms, but usually do not need to be dealt with, and can disappear on their own after 24 hours. If abnormal uterine bleeding occurs and the bleeding does not go away on its own, please go to the hospital promptly. Common side effects of mifepristone tablets include nausea, fatigue, lower abdominal pain, dizziness, breast tenderness, headache, vomiting and other symptoms, but they are mild and usually do not require treatment. If you need to use the morning-after pill, please consult a medical professional and follow the doctor’s instructions for treatment.