"i had mirena inserted one week ago today. my family doctor, as well as a very rude obgyn, were both not able to get it in. i went to a women&#039;s clinic and had it inserted by someone who does this all day every day. i was surprised by how quick and relatively painless it was - a small twinge of pain on insertion, not much else. the next day, 24 hours after insertion (almost to the minute) i had horrible, debilitating pain on my left side, down my leg and up my back. it&#039;s a foreign object in your body, so your body is going to try to expel it. i took advil but eventually needed t3&#039;s to get rid of the pain. after a few days, the daily pains went away. i am still bleeding (had it inserted on day 2 of my period). otherwise i feel great!"