I adopted a cat from the local humane society almost a year ago. They told me that they would have to keep her for 2 weeks before taking her home so they could fix her. I got her two days later because she already had the surgery. Since then, she's been going into heat...and now I believe she's pregnant. She was always skinny, no matter how much food she ate, but recently, she's gotten really fat. Her stomach is hard, but I can't feel any bumps in it yet. Is there a possibility that she could be pregnant?

And can I have the humane society compensate me for the kittens vet bills if she is, because they made the mistake?