I got my Mirena out in october, too! I have been having weird cycles since then, and I've gotten my hopes up once now, too. Try to just wait, because it could just be a long cycle. I am still not back to normal, this cycle was a 31 day cycle, when before mirena I had 26 day cycles. That was 5 days that I was SURE i was pregnant, tested every day, only to get my period late. not because i was pregnant, but because of my body still adjusting to being off birth control. It was just my body adjusting back to normal. If you are trying then I hope you are pregnant! But try to at least not waste money on tests, because it may just be your body trying to get over birth control. They say it takes 3 cycle to be 'back to normal'
at 2:46 PM on Dec. 27, 2008