Need some advice

So I have been detoxing for a month and two days. I decided to smoke a hand rolled cig with my tobacco. I don't really smoke straight cigs so I only took like 4 or 5 drags. I got a little buzz, and it started to worry me that it might be a weed high and not just a nicotine buzz. So I checked my tobacco cause I roll spliffs over the package and pour the spillage back in. I checked and there were definitely a few flakes in the package. But were talking about a few flecks in a whole package of tobacco. I ripped open the rest of the cig and I found like one tiny speck of bud. I have a job interview tomorrow with a serious company where a drug test would probably happen if an offer is extended. So I was just wondering what you think about me taking this drug test. Do you think I should be straight cause I mean were talking like the tiniest little specks of ground up weed and I might not have even had any in the part I smoked. And were talking like the tinniest flakes of ground up bud.