Women cannot take levonorgestrel tablets during breastfeeding, which is a kind of oral emergency contraceptive pill, generally used for emergency contraception for women or in the case of failure of other methods of contraception without protection, but if women take levonorgestrel tablets during breastfeeding, the drug will affect the health of the baby through breast milk metabolism, so it is not recommended to take oral emergency contraceptive pills during breastfeeding. Women can consider intrauterine device or condoms during breastfeeding. If contraception fails, it is better not to let the baby take milk within 3 days after taking levonorgestrel tablets orally, and wait until the drug is completely metabolized before taking milk, which will have less impact on the baby.