Cat due to deliver whilst we're on honeymoon

[Rosyelise]

We have three cats - one older female and a 1 year old brother and sister.
The 1 year old sister is pregnant but we booked our honeymoon 6 months ago and it looks like she may give birth while we're away for 10 days.
Any advice?
I've warned my cat sitter who is coming twice a day, and I have set up a box with sheets and a jumper that smells of me.

Either get a (very experienced) cat sitter to live in your house for the duration or cancel your honeymoon.

And get your cats neutered to prevent this ever happening again.

for gods sake get your cat neutered, do you have any idea how many healthy cats are put down as there aren't enough homes?