Please answer! I need to know!?

So I took 2 hits of weed 2 in a half weeks ago and b4 that I was clean , I weigh 130lbs and I'm pretty skinny, Im not a hardcore stoner I just smoke like once in a while, how long would it take for the weed to get out of my system for a urine test? I know I shouldn't have done it and I know it was stupid I just want to be clean so I won't be paranoid. So should it be out of my system by now????