I'm 36+5wks and just been told that I'm likely to have to have a c-section, my consultant has already booked me in for the 11th October if my baby hasn't already arrived by then. 

Trying to be organised in advance in case I do have to go in on the 11th I asked my mum if she would be able to drop off/pick up at school and stay with my 3 children on that day until my partner gets back home from hospital, purely because we have to be there for 7am and we don't know if he'd be back in time for school run etc. I've asked her as soon as I've found out as didn't want to ask her last minute and so I know I don't have to worry about my children etc. 

What's annoyed/upset me is that when I asked her she told me she'd have to get back to me about it, I know she doesn't have plans that day and I know it's a big ask but I rarely ask for help. She spends a lot of time looking after my niece and nephew which I have no problem with but on the rare occasion I ask purely for one day she seems dismissive. Am I being overly sensitive?