Situations like this have a way of dividing families, in this case you and your husband. Add in everything that goes on within a woman's body at this point after a pregnancy, and it's totally understandable that you are exhausted emotionally and mentally. Your husband probably is too. He likely also doesn't understand how difficult it is for a woman after having a child.

I don't know your situation in terms of finances, but I'm guessing it's a struggle or you wouldn't be living with your in-laws. So you're probably stuck. People in this thread have already advised you to talk with your spouse, and that's the first thing you really should do. I don't think you really want to divorce your husband, but you're tired and unable to carry on without your partner standing by your side. With that in mind, this is what I'd recommend discussing with him: A. How difficult it is for you in that house