I'm about to get married and my fiance and I have not talked about having children. I worry about starting this conversation with him - I want many babies and he seems disinterested! How should I do this?

I think this talk should be on your top priority. Can you imagine 2 years down the road and you want a baby when you see all your other friends having babies and your other half does not share your thoughts? This will cause much conflict and unhappiness in your marriage and cause alot of tension. Have the talk with your fiance.