Should I be upset?

We all live under my baby’s father grandparents home. My husband pays his fare share of rent ($400) sometimes even going out of his way to buy $800 plus of groceries and even pays his grandmother’s brand new car note and insurance ($500 every month). My mother in law is 37 years old and she doesn’t pay excessive bills maybe the water bill every 2 months which comes out to be $350 or $400 and her car note and insurance (idk how much). Well lately she’s been lazy and not keeping up with house cleaning duties and I’m a clean freak especially about the bathroom and kitchen sometimes we change chore duties on a weekly base (example. One week is her week one week is our week of cleaning the bathroom or kitchen or even the living rooms, not hard at all). I am currently 35 weeks pregnant and I get pretty tired and overwhelmed with being a full time student and cleaning up my chores and still cooking meals for my husband. Well I simply asked her to wash the dishes on Sunday, again on Monday and again today. I don’t know about y’all but if my kitchen isn’t clean, and dishes are piling up and the counters don’t smell clean I’ll fucken freak. Well I end up cleaning up before I cook because I’m weird like that, but I am literally pist doing it because we agreed she’d clean the kitchen. I end up telling her that I cleaned and it wasn’t fair since my husband and I already had done our own share of chores ( clean up both living rooms and maintain the restroom sparkling clean). She ends up nagging and saying that she’s tired and that she didn’t use anything in the kitchen or dirty dishes but she made a mess in the kitchen even left detergent out and left her mugs of coffee and skillet unwashed full of oil and simply had the dishes piled up. So I’m trying to keep my cool but she’s pushing my limits saying that she’s too tired. She only works 6 hours 3-4 days a week at Nordstrom and that’s if she even wakes up because she’s terrible at even managing her responsibilities. I’m literally at a point of packing my stuff and going to my mother’s home but I feel bad leaving my husband here with her crazyass.