if the tub/cage is not yet set up for maternal incubation i would do so before you go on vacation. having that peace of mind before you go will keep you at ease while you are away and she lays.
or
you could have someone you trust pull the eggs and put them in the incubator for you.
just this year i was attending a show in Genova about 5 hours from my home....i had one clutch that was supposed to pip that Friday before i left....they didn't which worried me a bit. I figured i'd let nature take it's course and when i got home on Sunday i found the entire clutch pipped and out of the eggs.....something that doesn't happen very often for me as i primarily cut once i see any pips.
you'll be ok....just plan ahead!
Pitoon