A.C.
Oh dear. I read your question, thought Dawn's answer covered it pretty well, and then I went and mopped the kitchen...and could not stop thinking about your situation. I have to admit, I got good and furious, and now my floor is sparkling clean, so there's that!
So, here is my angry rant. First off, you are an adult. Not a pet. You say he did not feed you well during your pregnancy. What the hell! Do you have no say about what groceries are purchased for YOUR home? You have no input in the meals? You have to eat only what he provides? He would not buy prenatals. Do you have no say in your health, in your children's health? That is not a marriage!! You are his WIFE and you are supposed to be a team, working together. You both have equal say in how the household is run. Even if HE earns the actual paycheck. It sounds like he is in total control of the finances, prenatals are just a few dollars a bottle. Correct me if I am wrong, but it sounds as though you do not even have your own spending money. I am sorry, but this arrangement sounds like absolute rubbish. No wonder you feel empty. You cannot trust him to feed you, look after yours and your child's health, or even stay loyal to you.
I would advise that you seek a new therapist. I would follow what Dawn said about getting some education and a job and saving some money. Best of luck, you deserve so much more than this.