I know what condoms are for, but how do you use them? Are they like a pill?
A condom is like a little balloon or the finger of a glove. A man slips it over his penis before he enters a woman, so that, when he ejaculates, the sperm stay inside the condom. Condoms are not 100% effective, but most of the time, if used correctly, they do prevent pregnancy and they also help protect against sexually transmitted diseases.