Blue dye false positives??


I’m on birth control and haven’t missed any days.. always take between 12-3pm. My birth control is used to skip periods so I don’t know what my true cycle is but I still track it on my calendar where I “should” have my period. I took a test because I had some unusual spotting and emotions all over the place. Took 2 blue dye tests around 1pm and 3pm then a first response at 6pm. I plan to take another first response in the morning. My bf is only home 2 weeks a month and the purple indicates possible sex. We maybe skip a day here and there.