positive? dang blue dye tests!

Taken 4 minutes after test was taken. Didn't mean to buy a blue dye. I am 5 months pp and don't have an AF yet but I craved lemons (which is what I craved my whole pregnancy and haven't thought about since having my baby) so it made me suspicious! I'll retest with a pink dye soon if anyone sees anything. I don't feel different and my breast milk supply isn't down at all. We aren't trying and have honestly only had sex a few times.