My boyfriend left me pregnant will he come back?

I have been with my boyfriend for almost 2 years. I am 6 months pregnant and about a month ago he decided to leave me. I know he was being with another girl and because I asked him so much I feel like I pushed him away. He hasn't asked how I'm doing or anything. Its like he completely forgets I'm pregnant. On Valentines day he calls and says he misses me. The next day I get a text that says he loves me. A couple days later I get a text that says I miss you and I love you. I'm really confused and I don't know what to do. I try to leave him alone but I can't let him go. Will he come around and be with me again for the baby? or is he long gone? PLEASE HELP ME

A couple days ago I asked him if he would ever be with me again and he said he didn't know.