Welcome Spacegirl!
This is the beginning of a new journey into the world of JW's. You will learn a lot, as I did four years ago.
Full disclosure: I am a 52 y.o. atheist married to a JW woman for 23 years. For many years I liked the religion because all the members were good behaving, and even loving people. That idea changed four years ago when I did a research on the "religion" (actually is a cult run by goons, almost as bad as scientology). I don't like adults imprisoned in a cult, but I can live with it. However, children is a whole different thing. They are innocent victims. Don't have any children with this man unless you have the firm conviction that you WILL NOT raise them as JW's.
Regarding your relationship, don't use my 23 year happy marriage as a comforting reason for your future. I am a man. You are a woman. As a woman, you are screwed in a patriarchal cult. Sorry for the bluntness, but you have to get ready.