I know blue dye is a no no. But it's what I had and I've been having a terrible time with first response. I've used lots of blue dyes and this looks different. My urine was possibly diluted because I drank some lemonade about an hour and a half before deciding I couldn't wait until morning, so I will do another test in the morning. It's hard to tell in the picture but the line is definitely more blue in person and is as thick as the control line. This line showed up within 2 minutes and didn't change during the 10 minute window. I took the pic after the 10 minute window so if it looks a little dry that's why. Am I imagining it? Could this be a false positive? Evap? If I get another line tomorrow I'll pick up some dollar tree pink dye asap and try those. I'm 25dpo and had stopped testing about a week ago due to too many negatives/possible faint lines and feeling discouraged