First of all, if those hits you took 2 weeks ago is all you've smoked in the past month, then you're golden. I guarantee you will pass. I'd say you were clean within 4 days. The more you smoke, the longer it stays in your system, as thc is fat soluble and metabolizes into the bloodstream for an extended amount of time, depending on the amount consumed. I've smoked half a joint 3 days before a piss test for probo, and i passed, as it was the only thing I had smoked. Now if you had been smoking alot prior to two weeks ago, I'd suggest looking for a whizzinator or my favorite product, "No. 1". It's 59.99 but worth every penny. It's a job interview test so they obviously aren't going to watch you.