Help me convince my girlfriend that, stastically speaking, a correctly-used condom is an adequate form of birth control! [more inside]
posted on Jul 2, 2008 - 41 answers

If you're on Depo Provera, how can you tell if you're pregnant? [more inside]
posted on Dec 7, 2007 - 25 answers

What is the real-world probability of my getting pregnant while taking antibiotics and oral contraceptives? [more inside]
posted on Jan 13, 2006 - 15 answers