Condoms also provide good protection against unintended pregnancy.
Bear in mind, however, that condoms can fail or break, even when used properly. Abstinence is the best way to avoid STD and accidental pregnancy. Have extra condoms available in case the first is damaged or torn before use or put on incorrectly or if you have repeated intercourse. Discuss condom use before you have intercourse. Put on the condom before the penis comes in contact with the partner's mouth, anus, or vagina.