"Whenever I have tried to explain this to him though he doesn't believe it's a valid reason for us to not be together and that I can't be that scared of him and there must be something else going on."
That's a common script with men like him.
You staying is depending on him convincing you that he isn't a threat and everything is normal.
That's dangerous in itself because he isn't repenting and making amends for his actions.
This relationship will turn physical, especially when you are pregnant.
He hasn't changed, the behaviour is still going on and getting worse.
The only thing you can do is to leave him for good and live the life that you deserve.
He will rob you of that life, he already has taken so much time from you. He will also take away the enjoyment of a pregnancy and how life should be with a newborn and children.
You are caught up in all the drama and it's scary to set up a new life and new normal.
You won't get any joy from speaking to him.
The best thing you could do is to just communicate via Email about legal matters and ignore anything else.