http://www.medications.com/effect/view/30089 I've had the Mirena for 4 year now. My periods stopped after the first month. From then on I have had light spotting for only 3 days. That changed two months ago. First of all my period was 18 days late for March but it finally came on and lasted for 10 day Fri, 02 May 2008 01:50:39 -0400 http://www.medications.com/effect/view/30089?item=7841 Shameike please see your doctor if you can't find the strings. The Mirena may have moved, or you may have lost it. Make sure it is still in place or you could get pregnant. Take care. http://www.medications.com/effect/view/30089?item=7841