D..
Have you two talked about this? It's unusual for a man to be a virgin in his 30's. I think it's actually important to know IF he can have sex.
I'm sure you're poo-pooing what I'm saying here. But I had a friend many years ago who was a divorcee and met a man several years after her divorce. They married without sleeping together because HE was religious and didn't believe in sex before marriage. In the first year they were married, they had sex 3 times. And not the first few months of their marriage. He was unwilling to try on their wedding night. The best she could figure was that he just didn't have an interest in sex. He just really wanted to be married and he loved her. But it was wrong of him to do this to her and not long after that first year, she left. It was a disaster for her.
Pre-marriage counseling would REALLY be in your best interest. Please don't go into this with rose colored glasses.