I have been taking the same birth control pills for years now and just the other day was my first experience of bleeding early while taking the pills. It started about a week and a half before it should have and the flow is much heavier than normal, to the point of massive clotting. I went to urgent care the next day to see what was up and the doctor there told me its probably just stress and to write it off this time and just keep track. He said lots of things can cause this and it shouldnt be anything to worry about since im not having any other symptoms. But im still worried. Is there something to be concerned about?