I wish he didnt purpose

I don't know what to do. I felt pressured to say yes. I don't want this. He is abusive and I really feel he only did it because I'm pregnant and he wants the baby to have his last name.

For example... after yelling at me all day yesterday because he didnt want to put together the baby dresser.. and I said it can wait... he took off to "work out" and was gone all night, got hammered with his friends & didn't come home at all... Even though he told me to order food for us and pick it up. He promised me he wouldnt leave me for New Years and we would ring it in together. So I waited for him, and ended up balling my eyes out eating cereal alone. That is just a small glimpes into my life. I don't want this.

Edit.

He physically smashed my face into the ground, broken ribs, several fingers, many bloody noses... the list goes on and on. Nothing since being pregnant.. but who is to say that wont start again when she is born.