I'm glad she could talk to you.
Tomorrow should certainly be the day! I know I've heard a lot of stories about the expected delivery date being off by 1 day. It must have something to do with how they handle live chick shipments.
Hopefully you can get some sleep tonight!
I remember doing something similar with my husband's underwear order, right before Christmas, but I didn't have quite so much hanging in the balance with boxers, as you do with chickens.