Hello,
Thanks for posting your query at DoctorSpring.com
I have gone through your question in detail and I can understand what you are going through.
I am afraid but 6-7 days is more exact. IN that case there is good chance that you may test positive on a urine test. I am sorry for that.
However every person differs on metabolic capacity and it is possible that you may be fast metablizer. IN that case, the test can come negative as well. Its difficult to predict this way.
Wish you best of luck!
Regards
Dr. Srikanth Reddy