I tried to do everything right with her, I waited longer than I did with Chloe and I waited too long. I'm not really worried about the mess, I'm worried about her temperament changing, her chances of getting cancer going up and her hating me for being the one that dropped her off to get spayed.
The vet said that the personality change was actually an old wives tale and that dogs will always be attracted to the dominate person in their life. I'm just scared she won't love me anymore. So, the vet said we need to wait. Let her have the cycle and two weeks after it's over, we can schedule her surgery.