Do you think I will pass?

I'll try to make this short and to the point. I've been completely clean for 6 months. Last night I toked 1 bowl of mids and vaporized 5 bags total (using Volcano vaporizer and standard Easy Valve bags)... both were shared with 1 other person. Considering I had 0% THC in my system before I got stoned last night, is it safe to say I'll be clean and able to pass a drug test in 3-4 weeks? Less time? More time? What do you experts think? By the way, I couldn't believe how stoned I was....6 months away will really make you a bud virgin all over again...I felt almost borderline drunk, that's how baked I was...good times though. Any help is greatly appreciated.

Two days later with over 105 views and no one has a clue?? lol c'mon, I could use some feedback.