Step children both primary aged who we have 50% of the time. Holidays split in half.
We had them last half of summer last year and we’re set to have them first half this year. Have had a big holiday planned and booked since last summer.
Mum is pregnant and due during this holiday. We didn’t know this until recently.
She wants to swap halves so kids are there when baby is born and so she gets a break with newborn.
What is reasonable here?