I was originally using blue dye equate brand and started testing 2 days after my period ended. It definetly got darker but not as dark as it should. I then used a different brand with pink dye on CD 18 and it was much darker on that test and is now getting lighter than it was, but again I don’t think it got as dark as it should have to be considered positive? I’m wondering if I would have tested with the pink dye on CD 17 if it would have been darker/positive then?