getting marijuana out of your system?

Hey guys, I recently got hired at a new job! Yay! But I'm not sure if I'll be able to pass a urine drug test. I'm not a weed user at all, but my fiancé is, I promised him a few weeks ago that I would try it for about three weeks. So for those three weeks I smoked about twice a week, a few puffs not much at all. But the second week I ate 3 weed brownies at the same time. Those hit me very very hard and I had an aweful trip. But obviously after that I didn't eat anymore lol. It's been about two weeks since my last puff and about 3 weeks since I had the brownies. I've been drinking a lot of water, but I'm really worried about it. I heard that if your not a regular user it gets out of your system faster. Do I need to give myself more time for detox? Would love to hear some opinions from some ladies who know a thing or two about weed👌🏻