My period is typically like clockwork.  This one (that I am still on right now) is not.  Started 2-3 days early (which I know can happen) BUT has lasted for, as of today, 12 days.  Its very light now, was only heavy-like for 2-3 days as it normally is.  I have no known health problems to date.  I am 31, overweight (but losing weight) and am worried something is wrong.  I keep thinking it will stop and it just doesnt.