He doesn't seem competely opposed to having kids so there still may be hope. I never wanted to have biological kids, but adopt. My husband wanted his own kids. I loved him so much, I compromised and had kids. I have seen men change about their oppinion on kids, especially once all their peers start settling down and there are no more guys night out but family BBQs with kids running around.

You are so young right now. I wouldn't let it bother you right now.

Once he has the job, the house with the backyard and is older and still isn't sure, then I would start to worry.