Cotinine?

I have a surgical procedure on Tuesday.. I quit vaping for 16 days to prepare for it. I bought at home nicotine test and they were boldly negative so I knew I’d be good to go Tuesday. I’m an idiot & gave in today.. I smoke my vape like 10 times and it just made me feel so sick so I put it up. 4 hours or so later.. I took a nicotine test for cotinine and it was still negative but definitley the second line faded in color. By Tuesday, will I be okay you think if I 100% do not vape anymore? How much cotinine will stay in my system just from 10 or so puffs?