I'm confused

I never thought after having my son my relationship would be this way we fight all the time and sometimes I second guess if I want to stay with him I don't don't what to do i dont feel appreciated at all I do alot and I don't get anything in return it upsets me thinking about us not being together but I don't know how to fix us we fight all the time mostly about the house being dirty I work 40 plus hours a week and care for our son and cleaning is my least piroity and he won't help becuase he thinks it's the woman's job