Anyone else’s husband not supportive?

To give a little back ground, my husband and I split up. While we were separated I found out I was pregnant (obviously his...i conceived the day i moved out) we had already decided to split so I wasn’t going to tell him for awhile but he ended up coming back around and wanting to work on things. At which point I told him I was pregnant, that I was keeping it , and that I understood if he didn’t want to be a part of it since it wasn’t planned and we are very young (21&23). He was upset and wanted me to get an abortion but eventually said he would get over it. I’m now 15 weeks and a few days ago he told me he still does not want a child right now and still thinks I should abort or if I refuse, i should at least give it up for adoption. I don’t really know what to do, I love him and I want us to work things out but I can not and will not abort this baby. I have told him he does not have to be a part of things, that he can leave and I would understand, I won’t make him raise a kid he doesn’t want. But he stays. He says he wants to be with me just no baby. I’m hoping the farther I get the more he will come around...but I’m not really sure what to do if he doesn’t. I guess this is just more of a vent...