I would think you would be fine. Its hard to tell though. I have a probation UA coming up this week that I am worried about passing, havent smoked on over 2 weeks, and it was only 2 hits of dro. I pissed clean in a home test today though. The only thing I would be worried about is having to re-test, normally clear piss is a sure sign of dilution. Next time you dilute pop some vitamin B before hand, it will color your piss neon yellow.