Quote Originally Posted by Biciclista View Post

If he spayed your female cat, she can't get pregnant. If she was already pregnant when he spayed her, he removed her uterus(s) and so there is no pregnancy after a cat is spayed. No matter what he removed all uterus and ovarian tissue.
For some reason, I was under the assumption that they just tied their tubes, although to be honest, I know nothing about that part of the cat anatomy.

Thanks for the reassurance though. I can breathe easy now.