In Sim 2 Pets, I have a family of 4 (adults), and 2 cats (adults). When I try to add 2 dogs from the family?

In Sim 2 Pets, I have a family of 3 (adults), and 2 cats (adults). When I try to add 2 dogs from the family panel, it says that one of my family members is pregnant, and the baby is in the way of adding these 2 dogs. I'm sure that non of the adult is pregnant, and one of my cat is male. So how can I find out if my other female cat is pregnant or not?