"best. thing. ever.  i had mirena placed in early june.  it&#039;s now late july.  here&#039;s my experience:  placement was a tad uncomfortable, but not unbearable by any means.  my doctor used a local anesthetic, which i think helped a lot.  after placement i had moderate period-like cramps for about 12-24 hours (nothing bad, just noticeable).  i spotted for about one week, then dried up and have had nothing and i mean nothing ever since. i haven&#039;t gained any weight, my eating and sleeping patterns are exactly the same, no pain, no spotting.  i mean, i would seriously call this a miracle form of birth control if it weren&#039;t for the mild discomfort of insertion (but it&#039;s totally worth that)."