To give a bit of context my MIL is entitled. She walks off when bills arrive at restaurants leaving everyone else to pay, she expects you to turn up with bags of shopping at hers but will eat and drink you out of house of home when she comes to visit, she moans a lot about being poor (which she isn't but it's all about what she doesn't have, not what she does) and when covid hit said we should buy her a house near us so she can be in our bubble (she owns her own which she specifically said she won't sell). Despite this, I do make an effort and have spoken to her a lot over this period to keep her spirits up as she's on her own, though her endless negativity is somewhat wearing.
To the pont - I have rather unexpectedly found myself pregnant again and we are planning to pay someone to come and be with us for a few months after to help with the baby, our current DC and the house. We run our own busy business, it will make life easier and cost isn't a problem.
Every time this arrangement comes up, she says that she should come and stay for that length of time. She says she coudn't feed the baby but she could do "other stuff". She doesn't have a massive history of actually spending time with the children we do have when we are with her so i don't know why it would be different with this one. In fact, she has distinct mentionitis about my SIL's kids when she is with us though ironically doesn't want to go there (SIL is also due again) for an extended period, just here (tho she is obviously going there when the baby is due and for the period just after).
In the same way, I have already said that when the time comes my parents are going to be looking after the DC while I am in hospital but at no point have i said MIL can't see the baby, just that we will be paying someone for the period after. I don't want someone here I feel I will end up "taking care" of emotionally, financially and everything else, which is where I feel it may go if it was her if history is anything to go by.
With all this in mind, how can I get her to back off? Or am I being unreasonable?