IUD experiences

Kinsey • just a girl trying to survive nursing school
Curious to see who all has experienced any type of IUD. I've been on Mirena 2 years now and haven't had any (horrific) issues with it. No weight gain, just sometimes severe cramping after sex. After about to 1st year my period had vanished which is normal! Had anyone ever gotten pregnant while on Mirena, or had trouble conceiving after removal?