I just took a 50 ng home drug test and passed with my first void of the day. It was a little faint but definatley there. I was clean for 2 weeks. My question is do you think Ill be below 15 ng in another 2 weeks? Im very skinny and I run and do sit up everyday, weightlift every other day. I eat very healthy (low fat and sugar). I also eat a bunch of high fiber cereal every night. At this rate will I be good for a gc/ms 15 ng test in another 2 weeks? Dilution and subing isnt an option, I have to actually be clean.