Welcome to SR, Opus.
I´m very sorry for your loss and happy for your new baby who will be entering
the world soon.
I lived once in the kind of hell you described and got out. Reading self-help books helped me a lot, "Men who hate women and the women who love them" was my personal life-saver, because it´s approach is gentle and teaches how to build yourself up and gather strength while in the relationship and how to plan and leave if that will be your choice.
I then formed a group in my area for women who had similar problems and even if it took some time, I managed to starta happier life.
I´m not by any chance saying you should stay if he becomes very abusive. Leave if he threatens your safety and the safety of your child.
Glad you´re feeling relaxed today. Keep working on your support system, gather information about your rights and you´ll make it, one step at the time.
Love and light,