random test

Does anyone know if just a couple of hits a day will show up as positive on a drug test. ihave randoms at work so i have been tring to take it easy(not that easy to do when friends come over).so i have tried to limit myself to only a couple of hits of kind every day or two :mad: .(i have not been tested for ten years now so i know my number is going to come up sometime soon!!!):(
thanks for any imput