Attitude was spayed in heat. They didn't charge me extra but I think that is because at her first vet appointment at 8 weeks I was told she was 'definitely male' after I put in her initial paperwork female. Yeah, she was so male she went into heat and her brother mounted her. I think it was also because I had her intact brother in the house and she's feline leukemia positive. They knew if she was in heat she had to be done, they worked me in the very next day. I think they normally do charge more since there was a spot for spay in heat/pregnant and mine had down $0 so I'm sure they normally charge for it. I just had 3 major things working in my favor to get it done. Mostly the doctor saying she was a boy when she really was a girl, which I had marked her down as, I know the difference. Of course she has long hair and isn't too keen on people examining her there so it's possible he thought he saw something that wasn't there. I had my suspicions as she got older that she was not male. I called the office after getting Nuts off her and holding her in my arms and I was so PO'd then put her in the bathroom and listen to them howl at each other through the door, later that night I decided she was getting spayed the next day so it really didn't matter if they did decide they wanted to do what they do. I did apologize to the vet's office for being so angry over the phone the day before but I had just found Nuts on top of his sister and well that was a shock. They said it was ok that they understood. I thought even if she was a girl I had until 6 months to get her done, nope she went into heat at 5 months old. I still wonder what they would have done had I brought her in for a neuter and she was missing the vital parts they were supposed to remove. The next time saw the vet I told him that my 'definitely male' cat had to get spayed. I then said they did her since she had swelling down there and he was worried she was pregnant, turns out she just had mastitis. How a spayed female gets that is beyond me, but whatever.