There is a possibility of pregnancy even if a condom is worn. The reason for this is that you can get pregnant with a condom if you don’t wear a condom at the beginning of your intercourse and only put on a condom when you are about to ejaculate. This is because the prostate fluid will contain a small amount of sperm before ejaculation. It is not useful to wear a condom after the sperm has been left in the vagina, which can lead to the possibility of pregnancy. It is advisable to wear a condom during the entire sexual intercourse when using condoms for contraception, so as to be safer. Also, before wearing a condom, make sure to check if there is a small break in the condom so that it will be safer. One more suggestion, when buying condoms, be sure to buy condoms according to the size of your genitals. If a condom is too big and falls off during sex, it can also lead to pregnancy.