Poor babies.
Hopefully, he'll adjust soon. Don't forget to constantly tell him he's a good boy, so he doesn't think he's being punished for something. I know some people like to put their babies in strollers while on crate rest, so they can be rolled around with them at all times. Not sure if you have a stroller, but it may be another option to consider.
Just curious if the chicken broth you or anyone has found has no onions or onion powder in it. I'm supposed to be adding some to Rory's food in an attempt to get her to drink more water (per vet), and both of the cage-free organic low sodium chicken broth I've found has onions and/or onion powder in it. I can use sea salt as a last result, but the chicken broth seems preferred.