Pregnant and lost

Long story somewhat short, I’m going to be having my first child early fall by a man who really wants no parts with any of it. He went from being a best friend to an enemy. I’m having such a hard time dealing with the switch that seem like it came literally over night once I found out I was pregnant. Someone who I spoke to all day everyday can’t even stand to be on the phone with me now. How do I move on? I try to focus on my little one that’s coming but I’d be lying if I said I don’t cry all the time because I miss the friend I had. I feel alone and invisible. 😢