I am done with my Mother in law!!!

My husband is their only son, they have a daughter who is going to college and lives in a different city. FIL lives iut of the country half of the time. Hence, we are living with her. I had no problem at first, was trying to manage m, but I am seriously done. When I was 3 months pregnant she threw a fit at home and was screaming on top of her lungs to my husband saying I dnt do the house chores properly and dnt clean the kitchen floors that often. Her theory is, she works from 6 am-11.30 pm, husband works full time 9-5 pm, I dnt work so I have to do all the chores. They can just leave dirty dishes on the sink, husband makes a mess in the room and then I also have to cook everyday cause they dsnt eat leftovers. I was trying my best and kept on doing all of it through out my pregnancy. She always sed she will help me with baby after he is born and will work 3 days a week. Well she is back working every day and I stil have to do all the house chores while holding the baby in one hand, she wont even hold him for more than 15 min when she is home from work. I am fine wjth the chores, but she keeps on complaining that I am not doing enough. I seriously want to leave and have a house of my own where I can live and breathe openly. I am not sure how to say this to my husband. I am so done, I am also going in to depression because of this