I've been tracking for 4-5 years. I've read that your "actual" period is the red and anything else (brown) is "spotting" and your body cleaning out old blood. But how do you track that? I always counted the whole experience (red 3 days and brown spotting 3 days) as the period so it shows mine is like 6-7 days. My first day is usually on the lighter side. Then the second day is super heavy, and the third day is medium. I read that as long as you're actually getting rid of the blood, there's nothing to worry about. Compared light bleeding the whole time (you're not shedding your lining properly?).