If you do not wear a condom during intercourse but take the pill afterwards, you will not get pregnant or have a low chance of getting pregnant. Because the pill is a remedial drug, it is usually taken within 72 hours after intercourse, and the earlier it is taken, the better the contraceptive effect, and if taken correctly, the success rate of contraception can be more than 90%. However, the pill should not be taken often, especially the emergency contraceptive pill should not be taken more than three times a year. Long-term use of the pill can lead to menstrual disorders, gynecological inflammation, and even infertility, so it is best to choose to use condoms to contraception, both safe and no side effects.