mama, you SO do not need this stress right now, especially if you've got a history of pre-term labor. I completely empathize with your utter frustration and disgust at his self-centered and aggressive behavior. It is totally not acceptable. Are you keeping your X out of your life as much as possible aside from the necessary contact?
I had no patience whatsoever while preggo with my daughter and had I been in your shoes, I would have let him have it.