Over it completely! Long story

So I've been stressing out over having a baby shower for my baby before he comes so we can have a few more things for him since we're on a very tight budget and trying to save for a car before he comes. Well at first my sister and mom were supposed to do it together and now that its closer to the date that they wanted to plan it for it's only my mom doing it. My mom keeps saying that she wants it at her house which is about a hour away and that since she's paying for it she should be the one who has the say in the decision. Well I keep trying to tell her that the people I want to come from here (my SOs family) won't be able to go down there and me either and now she's just acting like I'm being ungrateful by saying that and that we can do it at a park( she doesn't want the park bc it'll be"too hot"). Is it just me or is she being unreasonable?? Sorry this has just been going on for months and still no date for it and we have like 5 weeks left. This is my first also