Help female, 21,230 pounds

My friend let me borrow her pee to do a drug test but unfortunately didn’t give enough so I had to use a little bit of mine she’s clean and I’m not. What’s even weirder is I haven’t smoked in 4-5 months so I’m actually so confused but majority of the sample was hers and I put a little bit idk what to do will it still come out positive for thc I didn’t have to pee originally so I had to stay and drink water so when I finally did pee it was clear ish with tint of yellow I’m so torn idk what to even think