Teresa,
I'm Mom to a Gracie too...who went through her spay 2 weeks ago. We brought her home the same day...that was good and bad, I guess. She was pretty pitiful...tired and sore. We had to take her pressure bandage off her foot (where she had the IV) and she cried!
She recovered very fast...hardest thing was to restrict her activity for 10 days. Then at the 10 day mark, she came down with diarrhea...back to the vet to find out she has bacterial infection. She got a shot in her hind leg and is on 2 meds (one for a mild reaction to the stitches) and special ($$) food.
(Apparently he ate something she shouldn't have...like bird or rabbit poo).
I'm sure your Gracie will be fine...yorkies are very hardy despite their small stature.
Lori