Hi, I Was Diagnosed With PCOS Last Year. Was On

Hi, I was diagnosed with PCOS last year. Was on diane-35 from Jan 2015 till October 2015. When i came off diane My periods came on 12 October which lasted five days. then november 17 and lasted 7 days. Now i am experiencing brown spotting for two days. we are currently ttc. Do i need to worry about the brown discharge?