I had a nova-t coil fitted in April this year, I have had really heavy and painful period lasting around 7 days each. However my last period started on 31st August and my cycle is around 33-34 day cycle. But the last week I had dark discharge which when on for around 7 days (there was no blood) so have been wondering if that was my period. I am now 6 day late for my next period. I was wondering if anyone else had an experiences like this with a copper coil. I also can not find my coil strings! Please can someone help!