TTC after Mirena

Ashley • Full time stay at home mommy & wife. Just had baby #3!!🌈♥️
I only had my Mirena for a year but the second it went in I felt like I had made a mistake my getting it. I had a shooting pain down my leg immediately & that pain never really went away. The doctor said it was normal but I still had a strange feeling about it. 
I have two beautiful children. When I got pregnant with my son I was very young. It was not a planned pregnancy so I obviously did not struggle to get pregnant that time at all. When I got pregnant with my daughter we only had to try for a month so I didn't struggle that time either. Now we are trying to conceive our third (& quite possibly our last) & we are having to "try" this time. I can't help but feel like my Mirena is responsible.
Has anyone else had a similar experience? I would love to hear any and all stories!