The_SeeJay, I have a couple of comments, T in itself is not a contraceptive which you are well aware of. After one has been on T for some time, 3-5 yrs for many dr, they say one needs to consider a hysterectomy, is there some reason he doesn't want one, most guys do after they are on t for some time. Break through bleeding occurs in many guys after a time on T. Most guys want no part of something like an IUD or diaphragm where you have to see a dr to get fitted or examed. Guys want as little as possible to do with any handling of those parts down there. You two need to have a serious discussion about how he see these parts and what he wants to do about making sure he doesn't get pregnant which is probably the worst thing to happen for him. You must insist that if he wants to have PV relations something must be done so he doesn't get pregnant.