I am 26 weeks pregnant and know to not eat lunchmeat however last night at camp they served ham and cheese. i didn't eat any but was in the room afterwards. if i didn't eat any myself, should i consider i'm ok?

You're fine: The problem with processed meats and hot dogs, an some soft cheese is that these foods occasionally carry a bacteria called Listeria. If your foods are cooked and you wash your hands well if handling these foods you will be fine. Unpasteurized cheese, in my experience, is the biggest problem. In 40+ years of practice I have only seen three cases of Listeria infection.