I know it's easy for me to say, LOL, but I wouldn't worry. I have had many, many spays (and neuters) done, and never lost a one. The only real problem I ever had was one doe insisting on pulling out ALL of her stitches within two hours of the spay! And I jsut took her back in and got them re-stitched and put a shirt on her so she couldn't do it again, and she was fine. It makes them uncomfortable for a few days, but it's a routine surgery. She came through the surgery itself fine, so just make sure the vet gives you pain meds to take home for her and she willl be just fine.