How long does thc stay in your blood after smoking it daily for two weeks? if i stop on the 28th should i be clean by the 14th of feb?

Probably not: Marijuana is detectable in the urine for 6-8 weeks after use, especially if used frequently. If you are worried, you can buy a home drug test from most pharmacies and test yourself. It is fat soluble, which is why it stays so long. Good luck.

Not clean by 2/14: Thc is stored in the fat in your body -- and even if you are thin, your body contains fat. This means you don't pee it out immediately. If using marijuana daily, thc can remain detectable in urine for 49-90 days.