How Lon should brown spotting last while taking ortho tri-cyclen lo? I've been taking it since February 2014 and I've been taking it faithfully. I've never missed a pill or have yet to take it late. I had sex May 14th 2014 [used a condom, never broke] and started expeirencing brown spotting on May 17th 2014. I did have one cigarette on May 16th 2014. The spotting is only when I wipe and I've been having this for nine days. I'm worried.