Boundaries

So, my mum wanted to visit this weekend, but whenever she visits, she just sits down on her phone most times. I'm 38 weeks and 3 days pregnant, so exhausted, uncomfortable, in pain, and just feeling heavy over all. So, I don't have the energy to be cooking, serving & entertaining her, while I also have to look after my toddler and myself. So, I told her that we had a busy weekend, which wasn't a lie as we planned to celebrate my partners birthday, and I had an iron infusion appointment as well. She replied saying well she'd stay away. I felt bad and explained our plans for the weekend. She said she only wanted to come support me. If she really wanted to, she'd have done that the other times she was here. Anyway, I thanked her for wanting to support us. She then called my husband at work asking him about our plans, lol. My partner later called me telling me mum sounded upset, that she feels she isn't welcome in our house. I told him she can feel upset as she wants cos right now, I'm trying to get as much rest as I can before baby comes and not to have to cater to another adult.