You should be fine. But just to put your mind at ease I would get a home drug test at walmart or walgreens for about $15. I just took one myself because I also have a test tomorrow. I passed and I smoked only 1 week ago and was smoking daily before that. I am going with the substitution method because I have done it twice before. If you are going to get a pre-employment test I would go that route just to be sure. If you dillute, that should be ok too and I have had success with that method one time as well. I wish you the best of luck tomorrow and it would be great if you could get on and post your story about how it ended up working out or not, as people do not often say how it went. It could be very beneficial to others using this forum. I will. GOOD LUCK!