Lots of good luck vibes headed your way!
I am soo glad to hear of another pet owner doing the responsible thing and having their furbaby altared!!!! So many do not, and as a result there is a huge overpopulation problem and many die every day because they can not find home or are not adoptable. I work at our local shelter- today (every thursday actually) was our spay/neuter day- we did 25 dogs and cats today- no problems
Your kitty will be just fine!
Request a tattoo under the stitches so that if she ever gets loose - the shelter or vet that finds her can shave her belly and know for SURE that she's been spayed so they don't have to open her up to tell. At the shelter i work at, when we tattoo- after we close them up from the spay, we put a special tattoo ink in a needle and apply it lightly under the skin where the incision is. This lets people know they have been spayed if they ever turn up at a shelter/etc. (you can also opt to have the ears tattooed if you wish, your vet can tell you more about that!) The tattoo under the incision is important because often times, spay scars look similar to bladder surgery scars and it can be hard to tell 100% if the animal has been altared or not- so it will save a shelter or vet from having to reopen her and check for a uterus if they can see a simple spay tattoo
They're wonderful!!! (our shelter uses a pretty teal green, one of the other shelters uses blue so that if we get one of their animals in/vise versa we know where it came from and can hopefully identify the owner
) Also -she won't feel it at all as it is done when she's under anestesia