hi, i'm new, but i came across this site and it looked pretty good to put my mind at ease, i've had periods for around 10 years now - and they have always been every month - last for about 7 days... for the past i'd say 2/3 months they have been coming after approx 2 weeks lasting for 7 days then two weeks of etc etc, sometimes the normal heavy blood then other times really clotty. its never been an issue before, does anyone have any ideas what it could be? i read the other post from a newbie about roughly the same problem - except mine is either normal stuff that comes out or clotty or heavy.. could this be an iron problem as per her?