@CorennaRoyal Here is an older thread with some pics of scars. I’m not sure 3here you live, but you can ask your vet where the incision site will be. I. Europe we have seen some vets do a flank (on side ) spay rather than a midline (tummy) spay. We had one member quite shocked that the incision was on the side.
Also be sure you tell your vet NOT to use Ketamine as the anesthesia. It can be fatal if there is an undetected/underlying heart condition. Some breeders actually have it in their contracts you cannot use it.