I am post mirena 14 weeks 4 days and just ended my third cycle and I am just wondering you mentioned that around ovulation time you have some off days I think I have feeling this too. I just been having a couple of off days lately, and am post 12 days after my cylce so it fits. I think also my body hormones are trying to get back on track my body was trying it have a full length cycle, before it was only lasting about 2-3 days! How long did you have the mirena for?