My cycles were wonky for a few months after the Mirena was removed, bleeding every 16 days. I had the Mirena for four years and i'm also now in my *cough* mid 30s. A friend recommended some supplements for my hormone balance. They worked very quickly and within a cycle I was back on track with lots of fertility signs that hadn't been there. We didn't start TTC for about six more months and I made sure I was on the supplements for about a month or so. We were successful first try. I think the time and support I gave my body were big factors.