I have been on the Pill since the beginning of February and have only had one sexual encounter. For the last 3 month, i have been experiencing excessive spotting between periods. It's never blood red, but more of a brown color. After my one sexual encounter, i went to my doctor to talk about the spotting and they did a chlamydia test just for safety sake-which came back negative. My doctor found no reason for the spotting. I have not been sexually active, Taking my pill within an hour of my time (6pm) everyday, and have had negative test results for chlamydia. Does anyone have any information as to why this might be happening?