I know how hard the wait is.
If your that nervous then call before 3:00
I think she'll do wonderful. Pia was under 2 lbs. when spayed, Trixie I think was around 3 1/2 and when Paisley just got done she was 2 lbs. exactly and all of them are fine.
JuJu is a strong little girl and will be back to herself before you know it. Paisley came home and didn't want to move for like 2 days and then day three was so much better and by day four the monster was back.
I know you can't help from stressing and I hope these hours pass fast. Is she coming home tonight?