Worst nightmare come true

I'm 20 weeks pregnant with a precious little boy, my partner and I planned this for a year now that it's happening we fell apart today, it's been going on for a few months now but tonight made it real that we can't be saved and it's time to let go. His two other kids treat me like shit and they are 7 and 3 and he won't say boo to them so they don't hate him, I can't do this anymore I'm at the point where love has turned into hate.Any other single to be mommies on here??