Between the pill and the condom: How does contraception work today?

You actually know how contraception works. The pill to avoid getting pregnant, condoms to avoid becoming infected with a sexually transmitted disease. If necessary, both. And yes, there are a few other options, but they are still under discussion. This is what we learned in sex education classes. Or in the Bravo. Optionally also in discussions with parents or with the doctor. So why do we still have to talk about it?