So, every month I lightly spot the day before I start, which is a nice little warning sign. This month, however, I am spotting, but AF hasn't arrived. I was expecting her on Sunday. I started spotting on Saturday, which would've been normal, but it never progressed to anything more than spotting. It has been extremely light. Like sometimes nothing, sometimes very light pink. Every month is almost identical in symptoms, timing, and everything, so I'm not sure what is going on. Anyone experience anything similar? What could cause extended spotting & a delay in AF?