you have already developed the antibodies from being in contact with cats. When you suffer from Toxoplamosis you feel very mild symtoms that are easily mistaken for a reagular cold, and whilst there is no danger, it is extremely dangerous whilst pregnant.

Best to check with your doctor. IF you already had the disease then you have developed the antibodies, which means that you will not get it again so you can keep your cat. THis can be seen in a blood test.

However, once your baby arrives, best to keep your cat away from your baby.