Speaking of contraception, I don't think I've mentioned this before - a friend of mine thought that she was safe from pregnancy while she was breastfeeding her firstborn. She was astonished when she got pregnant with Son #2 when Son #1 was less than a year old. She asked me "Did you know you could get pregnant while you're breastfeeding?" Bemused, I said "Uh, I never thought about it, but I would have thought it was possible, yes." "Oh. Well, I didn't."
(To be fair, my understanding is that breastfeeding makes it LESS likely for you to get pregnant - it's your body's way of trying to make sure you don't have too many babies too quickly. It's by no means foolproof, though.)