I just went through this two weeks ago. Ellie's recovery went like this.
3:30pmish end of surgery
7:30 came home
7:30-12:30/midnight could barely sit up...wouldn't eat (that is huge for Ellie)
1am ate (she wanted to, I didn't force her)
6amish peed
and started walking a bit
midday sometime: pooped
Lazy for a few days and didn't want to do much
A week or two later she is back to herself
We did syringe her some sugar water when she wouldn't eat and some plain water so she wouldn't dehydrate.
I was very concerned when she came home that night and wouldn't move, so I started a thread. It is in the emergency section. People here said it was normal and someone's dog laid on the couch for a few days and had food brought to it. If that would have happened to Ellie though, her vet woulda had a fit and saw her again. I would think she should want to eat and move around by tonight or tomorrow at the latest. Is she on pain meds?