birth control
"Consider something you like. Say, a favorite breakfast food or a place to go with friends. Now think about something you care nothing about, say, the painted lines on a road or the bottom of your kitchen table. Imagine that everything you like, instead of being something nice you enjoy, becomes as unimportant to you as the bottom of your table. Work. Favorite nephew. Friday night. Now you feel nothing either good or bad. That's depo provera. Yeah you won't get pregnant but that's because you won't care about sex or your mate or anything. Most awful 12 weeks ever. Good news though, you won't care about your three month period either. Or the enormous blood clots. Or the long term damage like bone density loss and anemia."