Level 1: What contraceptive measures are needed before pregnancy? Before preparing to become pregnant, women need to take some contraceptive measures to avoid unwanted pregnancy. Common contraceptive methods include oral contraceptive pills, contraceptive rings, contraceptive patches, etc. In addition, methods such as safe period contraception and external ejaculation can also be used. However, it should be noted that these methods are not 100% reliable, so it is best to choose a contraceptive method that suits you under the advice of your doctor. Level 2: What contraceptive measures can be used after pregnancy? If already