If you wear a condom correctly during intercourse, you generally have a small chance of getting pregnant, but it is not 100% contraception. Condoms are a good form of contraception.
If you wear a condom correctly during intercourse, the success rate of contraception is still very high, but it is still not guaranteed that you will not get pregnant. If you wear a condom during intercourse and the condom slips off, breaks, or has quality problems, semen may flow into the vagina, and an unwanted pregnancy may occur.
When using condoms for contraception, you need to check whether the condom is within the expiration date, whether there is any breakage and so on, and wear a condom throughout the coitus to avoid unwanted pregnancy.
People who want to use condoms for contraception are advised to buy them from family planning organizations or regular sales outlets to avoid contraceptive failure due to quality problems.