boyfriend wants baby

ok so I have this amazing boyfriend. Hes really good to me, Im a really broke single mom and he pays for everything and is very good to my son. He basically does everything for me, always helping with stuff when hes over and I feel I don't do enough for him.

The problem is that I have a son, and before or as soon as he gives up his whole life and moves an hour away from his home to live with me he wants to have a baby. I do want a baby with him, but im not sure this is the right time. He went to college and graduated and I messed around and now I'm 23 and I still have 3 more years of college. So now hes 25 and I feel the way it is is if I want him to stick around I need to have a baby with him. Like if hes going to support me and my son when im in college and move out here that is what he wants. If he has to put up and pay for me messing around when I was younger he wants this. Plus Hes like compettive with my ex and baby daddy who was a total jerk and I think for some reason that makes him want to get me pregnant too.

I know he has good reasons to have a kid but I am kind of scared about some of these bad reasons and the way hes pressuring me. Like he hasnt come right out and said this stuff but I think thats how he feels. What should I do?