It's a boy????

So, many of you know the story behind us having 2 cats. We adopted Chewy from the pound when he was 5 weeks old and then about a year later he adopted a cat friend for himself, who we named Laia. Laia has been our cat since around last March when we would always find Chewy and Laia in the yard together and she was skin and bones so we started feeding her. I was thrilled to finally share the house with another girl, even if it was a cat! Today, I took the cats to the vet to get health certificates so they can fly home. The vet and I were talking about spaying Laia and why it was important when he got an odd look on his face and then went on to tell me that Laia is NOT a girl at all! Laia...now AKA Luke....is a BOY! A neutered boy, which is why Dave and I thought it was girl parts and not boy parts, but no less a boy! I was SHOCKED! Now we don't know what to call "her" and we keep messing up the pronouns! When I told Dave he about died of shock too. The kids thought it was pretty funny! So anyway...no matter what I do I was just destine to not have a girl...even when it comes to cats!