Seems slightly.....inconsiderate to me.....

Me and my fiancee could just be near each other and (especially right after sex) he start rubbing my belly (it's not big at all) and says "we(or he'll say "you") have a medicine baby". I really want to have a child and he knows this. Last year I went into full cardiac arrest due to a genetic condition that we never even heard of. It's called Long QT Syndrome. While in the hospital they just gave me the best medicines to keep me alive at the time. It's been almost a year and 2 months since then and I luckily haven't went into cardiac arrest since then. The medicines combined actually keeps me from getting pregnant. It's like the two of them together act as birth control due to them messing with my hormones. Me and him have talked about this together and so every time he ejaculate inside of me, I don't get pregnant. It hurts me so bad to the point I cry for hours about it when he's not around. I can be sitting next to him and he'll once more say that phrase again. What should I do?