My period already came this month, and ended on the 15th( was six days only and very light, which is unusual for me, normally last 8 and really heavy bleeding). Well on the 24th I started spotting and still am, it started off as a very faint pink, than became a brownish, and now a faint pink color again. I have never had this happen before and don't know what to make of it. My fiance and I do have unprotected intercourse, and have been TTC. Can someone please explain or at least give me some information on what is going on, because it's worrying me?