What Is The Prolonged Periods In Spite Of The Mirena Coil?

i HAVE HAD THE MIRENA SINCE NOVEMBER 2009 i TRIED TO FEEL FOR THE STRINGS ABOUT A WEEK AGO AND I COULDNT MY HUSBAND THINKS HE DID. A FEW DAYS AFTER THAT i STARTED MY PERIOD HEAVY AND STILL ON ITS BEEN ABOUT 11 DAYS OR SO,BUT I NEVER HAVE HAD A PERIOD SINCE I GOT THE MIRENA DO YOU THINK ITS MOVED? I REALLY WORRIED ABOUT BUT I HAVE NO HEALTH INSURANCE ANYMORE AND HAVENT BEEN ABLE TO SEE A DOC WHAT SHOULD I DO