Contraception is required for the nine-valent shot and will not keep you from getting pregnant. Nine-valent HPV vaccine is a vaccine that can prevent nine types of human papillomavirus. It is necessary to get this vaccine to prevent cervical cancer, warts and other diseases. The vaccination method is to receive three doses of the vaccine in the order of 0, 2, and 6 months. The vaccine has no contraceptive function and does not cause non-pregnancy. During the 3-dose vaccination period, contraception is required for 1 month after the last vaccination to avoid pregnancy. Because there is not sufficient research data on the use of this vaccine in pregnant women, it is prudent to use contraception. If you do not use contraception, it is very likely that you will become pregnant during vaccination.