Scared of Birth (venting)

Just need to type about something because I can’t really talk to anyone about it. I had a very traumatic first birth that almost killed me. I currently have sole custody of my 3 year old daughter with a DVO against her dangerous father. I give birth to my second child in just a couple weeks. Now I love both of my children more than anything but I feel as if I am regretting getting pregnant because I’m scared the birth of my second daughter will kill me. And leave my daughter with a man who hasn’t seen her in over a year and who has never taken care of her or shown interest in her. I’m scared and feel so very alone.