to be annoyed at SIL even though she is in hospital?

[GoldPlatedNineDoors]

I have had a weekend away booked for about 6 months, and only booked after SIL said she would mind DD on the Friday (DH at work, offered to take a days leave but SIL insisted).

At the start of the week, SIL asked if I would write down DDs routine (10mo dd), and she could ask any questions Friday morning before I left. We arranged for her to be here at 9am.

On Monday night, DD was poorly with a sickness bug. It was a 24 hours thing (DH had it too), and she has been a bit off colour Tuesday and Wednesday. DH text SIL to ask if it was OK if we let her know a definite later in the week on the Friday babysitting as (here is the crux of it) SIL has been unwell and her immune system is incredibly weak (although she is well day-to-day). We didnt want SIL to be at risk of the sickness bug. She said no problem.

No vomiting or anything from DD on Tuesday, Wednesday or Today. I asked DH to text SIL to say DD was all well, perfectly healthy and if she was still OK to watch her tomorrow.

SIL has responded to say she is in hospital overnight having scheduled surgery and wouldn't be able to.

Now, AIBU to think that if she was in overnight having scheduled surgery the day before she could have at least told us at some point during the last few months or weeks so we could make alternative arrangements? I spoke to her Monday morning and she was asking what DDs routine was for tomorrow.

I just don't understand. I know we mentioned at the start of the week that it was tentative whether DD would be well enough, so part of me thinks that maybe she has been booked in after then, but all her other surgerys (she has had around 4 in the last 3 years) have been booked in advance.

AIBU? I do worry that I am, for being frustrated at this.

DH is now going to have to call in sick (parental leave must be taken in blocks of a week and notice given), where if we had known he could have booked a Leave day.

Even with scheduled surgery, she may not have known the exact date, just that it would be in the next few months (a situation Ds is in) - she might have been asked if she could take up a cancellation. So I would give her the benefit of doubt here.

YABVU if she has Ulcerative Colitis or Chrons disease they are bloody awful!

I have ulcerative colitis.

You can be called in at the last minute for surgery with both of these.

To be honest her looking after your DD if there had been an illness in the house even if it's now gone wouldn't be a good idea.

My Immune system is weakened and I have to keep away from people when they have colds because it could attack my body and I'd end up in hospital.

Stomach upset recently in a house there's no way I'd go there.

It's lucky your husband can take time of and that your MIL has offered to help out.

I hope your poor sister in law feels better soon.

I would have assumed that she had surgery planned and for some reason it got brought forward st last minute.
The use of the word 'scheduled' to me would suggest that she meant it is the scheduled surgery that was brought forward.