Questions during sex?

Okkkkay. So, has anyone else's SO every started asking questions like, "when you're pregnant, nothing will ever stop us from having sex and fun right? Nothing is going to stop us." He also asked me to keep asking him if he was going to get me pregnant so he could say back that yes he is getting me pregnant. I don't know how to take that? Is he like real excited to get me pregnant, like what!? That was just random to me. Lol