I'm 20 and have had many issues with my periods. My longest has been 70 days. I just got on birth control on May 15 and it has seemed to shorten my periods but it's made them EXTRA heavy. I've been to hundreds of doctors for these issues. Turned out I have hemophilia and even though I started medication for that it was still going for a really long time but was really really light, so I started birth control. All of my hormones and ovaries and everything is fine, I've had everything looked at several times. I'm just at a loss anymore.