Single mom again

I never saw my life like this, having two children with two different fathers. I’m currently 6 weeks pregnant and I’m terrified right now. I finally decided to leave my abuser after mental torture . He doesn’t know I’m pregnant. I’m scared to do this by myself. I feel selfish for wanting this baby and for my son. I feel it not right for me to have a child at this moment. But I don’t think I’ll ever be ready. I’m scared to what he will think or do to me if I tell him I’m pregnant and keeping the baby. Does anyone have any positive story’s about becoming a second time mom and single.