Just curious about spotting!

Hey guys! I am 25, married and ttc for 4 years now and I have the most irregular periods with PCOS. Recently, I had spotted for 11 days straight. Not enough to need a pad or tampon, but just there when I wipe. I'm sorry, I know that's a LOT of tmi, but there it is lol I never spot this long. Any ideas of what might be going on? Has anyone else with PCOS done this?