Relationship falling apart

My boyfriend and I have been together for a year now. We met September of last year and I got pregnant about a month later. Our chemistry was everything and more. It seemed as if we fell in love the moment we met. I agree everything happened very fast but it felt right. I started staying with him and we were just getting to know each other. We’ve always been affectionate but a few weeks before I delivered he stopped all that. My confidence was gone and he wasn’t helping. Our baby is almost two months now and it feels like we’re just roommates now. I don’t want to lose him because he’s the father of my child but our relationship seems doomed. He doesn’t look at me the same or even dare to touch me. I don’t know what to do