i am on the contraceptive pill now over a year and just recently am having abnormal bleeding , i had my period as due on 23 december 2012 and lasted the normal 5 days ,then on the 12th jan 2013 i started bleeding bright red in colour alot of abdominal pain and cramping ,it has got lighter but still present and doesnt seem to be stopping , i havent had this before and am very regular ,bit worried