Depressed and sad

I need to vent. My baby daddy is listening to his gf so he blocked me on everything even texting. He told me he would be there for me even go in the room but he said good luck giving birth by yourself and he doesnt think the kid is his. I been sleeping with him since September. Im not sure if i can do this myself. I am so overwhelmed and i keep getting anxiety because all i keep thinking about is him. My heart racing at night because i have so much on my mind