Never take being clean for granted. We've had people here that have taken over 60 days to get clean. I would pickup a test strip at a drug store and check yourself. Most just use the standard dip strip test but some use saliva and the hard cases use hair. Saliva is easy to beat. Just abstain for 4 or 5 days and use a good mouthwash. Hair tests can be beat but aremuch more involved.