Baby daddy troubles

I’m 14 and 12 weeks pregnant. Ok so I’ve finally gotten my insurance information in and I have scheduled my first appointment but i feel bad because i havent told the father of my baby. He hasn’t really been there for me doesn’t even check on me or ask if there is anything coming up (we have slowly fell off since I found out that I’m pregnant). I don’t really want him there just because he’s not apart of anything else, but I feel bad because he says he wants to be there. I just dont know how me and him are going to get along at something like that. Any advice?