Mirena Side Effects: I am 30 years old and have never had any children. I had my Miren http://www.medications.com/effect/view/32663 I am 30 years old and have never had any children. I had my Mirena inserted on on 7/18 (during my cycle). I know it has only been a week but I'm feeling a little concerned and confused. While having it inserted I was SHOCKED by how painful it was. I, li Your doctor should have never given it to you if you never had an Thu, 24 Jul 2008 15:37:39 -0400 http://www.medications.com/effect/view/32663?item=10416 Your doctor should have never given it to you if you never had any children. And that pain you felt, that's what a contraction feels like. Good luck. http://www.medications.com/effect/view/32663?item=10416