MIL decides she's staying with us my first night home after delivery without asking.

We asked our MIL to watch our kids Fri-Sun while I was in the hospital delivering. She tells my husband she is staying Thurs-Mon. She said so she can hold the baby while I rest. I will be giving birth 24 hours prior and just getting home. We haven't even bonded or established breastfeeding, but she expects me to hand over my newborn to her. And not to mention with the tridemic going on. I am trying to eliminate germs. I wasn't looking to have anyone around her so soon. She is known to control narratives and be manipulative with her kids. We just got on ok terms after a year of not speaking because of her ways. I feel like she is overstepping her boundaries. Normally I would like things slide. But I refuse to be unhappy when I get home because she decided to stay without asking. Now I feel my husband might get upset if I tell her that I do not want her there my first night home. I am going to tell her no though.