We have a dog and my MIL asked when DS was diagnosed if we needed to get rid of him. The doctor indicated that unless there was an allergy issue, it shouldn't be a problem. He did ask us if we had cats and when we said no, he said good. Not sure what that was about... Isn't there some sort of bug that is in cat boxes that we're warned about not cleaning when pregnant? Anyway DH isn't a cat person, so not an issue for us.