I agree with previous posters, I know it's hard, but try focusing on yourself and your LO,
The act of crying isn't exactly damaging, but extreme stress can affect pregnancy, as can not eating, and not taking care of yourself.
Try meditation and mild exercise, and go to your friends and family for an outlet to take your mind off of things.
Also, try to consider, his actions thus far are not what is best for the baby, at least not at this point. Keep what is going to be best for your little one's future in mind.