I'd go talk to a family therapist, alone or together. He might act like he thinks this change of heart is not a problem, but since you are a couple and the decision to try for a baby was originally a joint decision (I think), he can't just unilaterally decide that you cannot be a mother with no real explanation. At least he owes you the chance to try to change his mind. You can't force him to become a dad, but he can't just pronounce that you cannot become a mom again, you as a couple must decide and try to work out a path through this. I hate to say it, but for some couples the question of having a child is a deal-breaker for the marriage. Before going in to see a counselor, it might help for you to decide how much you want another child -- would it be the kind of thing you would change husbands to attain?