I am late on my period 10 days I have taken multiple blue dye test different brands all positive but faint not like squinting faint just not super dark. Took a FEFER it was negative went to the dr just to check blood test negative urine test negative. My hearts broken I’ve been TTC with my husband and we really got our hopes up and I’m so upset I’ve been crying all day. These blue dye test will drive you crazy I recommend only using pink dye. I would have been 6 weeks today if I was actually pregnant like the blue dye test had indicated. I wish everyone else Baby dust but I’m overwhelmed and so sad. I guess I’ll have to keep trying but now I don’t even want to I feel like I have lost a lot of hope and a piece of me. Blue dye test shouldn’t be on the market it’s a cruel trick for women TTC who think it’s finally there time and when they retest and it’s negative it really brings them down so save yourself the trouble and stay away from blue dye. I’ll never buy one again.