am I wrong to be mad because I've literally done everything all day while working with my mom at HER…

am I wrong to be mad because I've literally done everything all day while working with my mom at HER daycare? I'm supposed to be the sub and I've done everything all day while my mom sits upstairs in the living room on her phone while I'm downstairs with six kids lifting them up and changing their diapers and lifting cots and pack n' plays?! I'm exhausted! and on top of that she made me do all the dishes and clean the kitchen.. I'm 32 weeks pregnant... I just feel overwhelmed.. 😣