Leaving your little ones

My daughter is 2 and I'll be having my second daughter in a few weeks. When my mother in law and I were on better terms (we are very up and down) I arranged with her that she would be taking care of my daughter while I'm in the hospital. My mom would be at the hospital with me as a support person, which is why she wasn't chosen to be the caretaker right off the bat. Now that the date is approaching, I dont want my daughter to stay at my in laws! They have never had her for a sleepover or even for a visit without me or her dad there. They have never asked to have her. But they always ask my husbands ex for my step son and have him all the time (which is a major source of our conflict).

Anyway, I just dont really trust them or their "grandparenting" and I dont feel comfortable leaving my daughter with them when they have never had her/dont seem to want her staying with them on any other occasion. I'm making lists in my phone of what I will need to pack for the 3 of us and I dont even want to think about what my daughger needs because I dont want her to go 😩 im so sad and torn on what I should do. I would rather lose my mom as a support person so that I know my daughter is in good hands, but I assure you my MIL will lose it if I cancel on her. It will create ANOTHER problem between us which I reeeeeally dont need from her right now lol. But do I put her feelings before my daughters comfort and my peace of mind?? When my daughter was born, I was in the hospital for 5 days 😬