A little backstory, so I found out I was pregnant and I tested with a first response early result pregnancy test, when I took the test it was clearly negative. I left it on the bathroom counter and went to bed thinking nothing of it. When I woke up in the morning there was a second line on it, seeing all these ladies post about Evap lines and Indents I assumed that’s exactly what it was. I took A clear blue test and there was a very faint blue line but noticeable enough to see it, then took a CB digital, it was positive! so long story short blue dye does not suck and it detected my pregnancy before a first response early result did, don’t let these ladies get you down thinking you’re having false positives JUST because it’s a blue dye. F them. Blue dye works the same and in my case, even better.