Evap or positive

Lindsey • 30 Mother of 8 yr old and 3 year old works in orthopedics, 10 years with the love of my life ♥️

I have taken a few of the dollar general pink dye test and never came across this. I took the test looked at it right away figured it was a negative look at it later to throw away and saw a pink faint positive. I’ve never had one no matter what the time have a pink line what do you guys think?