Well, I feel you, cause I was tanking most of the feeding and cuddling of baby for 5 months before I went berserk and gave him a crazy bitch fit mode.
All that being said, it’s important for you to delegate duties to daddy and include them in baby’s journey. Also, be open to communicating about your feelings to in law as well as your husband, and see what can be arranged or worked out. As the saying goes, it takes the whole village to raise a child.
We still have arguments from time to time, but the emotional aspect of our family is stable and enjoy each other’s companionship :)
Lynandee