Drug testing on a federal level..

Mary
So I'm going into the health care field and I need to get a drug test done on a federal level. I personally do not smoke weed, it's just not my thing but my boyfriend does. Well in his house everyone smokes and I try to cover my nose when they do smoke but the other night I woke up to him smoking in the bed room. I have to get my test next week!!! I know that I could possibly have second hand smoke but could it make me fail my drug test?! I'm so angry with my boyfriend. He keeps telling me I'll be fine but I truly don't know how it works.