Alright ladies I need some more advice. I work at an oral surgeon's office. We use nitrous oxide and have an older system so it is not all filtered out. I know I'm not supposed to be around it, as it can cause miscarriage and/or preterm birth. Since for the time being I'm playing the waiting game, should I tell my boss or not? I am working today to help out and of course I'll be there Monday as well before I go back for my repeat bloodwork. I've never told a boss so early in the pregnancy before...