Do you see what I see

Please no negative comments. I took this test last night looked at it after 3 minutes look negative so I went on to bed this morning I glanced at it and noticed the line not a gray line not a clear line a light pink line I know tests are supposed to be invalid after 10 minutes I read that if you run water through the test it will be erased in the evap line I did that and I still see a faint line what do you guys think?!?