I'm not sure of your puppies' gender(s), but if you have a male you'll probably notice he bounces back from the surgery a little faster than a female does. I've heard that the spaying takes longer and is a more complex surgery than a neuter is.

Eli was neutered at 7 months, and although he was groggy that evening he seemed almost back to his playful self the next day! We had to really work at it to keep him from getting too active.

Kobie was spayed at 6 months, and even after she stayed overnight at the vet's and came home 24 hours after the surgery, she was quite an unhappy little camper. She had to wear a "lampshade" to boot, poor thing, because she wouldn't leave the stitches alone.

Your vet will probably give you all kinds of written advice and instructions, so don't worry too much! They'll be fine with a little TLC for a few days!