Am i wrong for feeling this way?

So i need some outside opinions, and also to rant a bit. My MIL has been horrible this whole pregnancy. She’s always been a very overbearing woman, super opinionated and just has a way of making you feel so uncomfortable/stupid. ever since i got pregnant it feels like she has no respect for my wishes unless she is called out, and even then she will continue to share her opinions to my husband behind my back. My parents are super wonderful & have been planning an awesome baby shower, and i’m sure as you all know they can get pricy quick. When they asked my MIL if she would be able to chip in at all for her guest list we were given, she tried to cheap shot everything (were already doing things as cost efficient as possible) & eventually told us she wants nothing to do with the shower. She’s been the main reason i’m not enjoying my pregnancy & all i can do is stress about when the baby is born because i know she will not respect anything i want. So my question is, am i wrong for planning on not telling her when i go into labor? I only want my mother & sister, and of course my husband in the room. I don’t even want this woman waiting at the hospital because i’m sure she will sneak her way into my room & make my labor complicated. Me and my husband agreed to call her after the baby is born, when i’ve had time to get myself together and bond with my baby first. Has anyone else done something similar, or do i need to suck up my pride and call her when i go into labor?