When I hear about condoms, I hear people say "when used correctly." What does that really mean? I thought it was pretty obvious how to use one, but now I'm worried that I'm doing something wrong.

Correct use means following these steps every time. When a condom breaks, it’s usually because one of these steps wasn’t followed. If you buy a package of condoms, first read the directions (usually included inside or printed on the back of the box). The directions should cover the same steps that we have listed in our FAQ on how to use a condom correctly.