Anyone have difficulty getting pregnant after having an IUD (Mirena)

Melissa
I down loaded this app because when me and my fiancé get married in September we want to try. He is so excited to be a daddy (I have 2 already) I have such fear I can't make him a dad because of the horror stories of mirena. Which he said would be OK because we already have 2 and he loves them as if they were his.