If he was my daughter's dad, I'd RUN. I know you want him in your unborn baby's life, but I don't understand why...
You say he treats you like a sex toy, he disrespects you, do you want your child growing up witnessing this?

You're pregnant, and you should really be looking after yourself and your unborn baby.
I can't tell you what to do, but seriously, I'd go home and allow him supervised visits, coz my kid is N0T going to be doused with water or burned with peroxide...