I have been on ortho tri cycle lo for 3 months now.. I'm not due for my period for another 4 days. I had black and dark brown colored discharge for the past 3 days. It's not heavy enough to need a pad but usually when I wipe it comes out the most. What could this be and should I contact my dr?

It's ALWAYS worth contacting your doctor with something out of the ordinary. Any chance you could be pregnant?

Good luck.