Both pregnancy and PTSD make women vulnerable and dependent. Maybe it is vulnerability and dependence that makes men who are potentially abusive actually abusive?
You mentioned possibly going together to therapy again. I wonder whether it would be better for you both to seek individual therapy for now. You might explore that very question with a therapist. Are you in therapy now?
Nobody knows better than I do the problem of being in the dangerous person's home, with no place else to go. If that plays a significant role in your reasoning, I understand but don't let this reality alter your perception of what he has done, whether he is responsible for what he has done, and what would be best for you. Face the practical problems after you've sorted out what has happened, what is happening, what might happen, and what you want to happen.
You mentioned possibly going together to therapy again. I wonder whether it would be better for you both to seek individual therapy for now. You might explore that very question with a therapist. Are you in therapy now?
Nobody knows better than I do the problem of being in the dangerous person's home, with no place else to go. If that plays a significant role in your reasoning, I understand but don't let this reality alter your perception of what he has done, whether he is responsible for what he has done, and what would be best for you. Face the practical problems after you've sorted out what has happened, what is happening, what might happen, and what you want to happen.