So on Friday I started getting faint positives on blue dye. The line would pop up within 2-3 mins and get darker. I tried pink dye and didn't get anything then, but Saturday I started getting faint lines on the pink dye. I took.a first response Saturday and saw nothing. Took one this morning, and I swear something is catching my eye, but its probably nothing. I stopped borth control 2 weeks again, and had my withdrawal bleed, that lasted 3 days, 9 days ago. Could all the blue dye be false positives?