Call a safe shelter or other domestic violence support group so that you have a plan in place if he gets violent. I am sorry this is happening to you. After representing women for many years, I am very cynical. At a minimum, he should go to therapy for anger management. Frankly, my first thought is for you to get to a safe place to protect you and the baby from harm. If he is serious about making this work he will start seeing a therapist right away. Even if he goes to therapy, he must regain your trust.

Sorry to be so negative, but I just have bad vives about this guy.