Having kids....?

So my husband and I have been married for 2 years now. This past Valentine’s Day after having intercourse we laid down and talked about different things. I asked him what he thought about having kids one day and he replied I’ve never really thought about when I want to have kids. Plus he said that he asked his coworkers about it and they think we are to young. He is 25 and I am 23. I think it’s the perfect time to have children but I don’t want to seem to pushy about it. I’ve asked him what his biggest fear is and he said not being able to provide but we both have really great jobs. How do I approach him again without being to pushy? Any advice is greatly appreciated.