"i had my mirena iud inserted 4 days ago. insertion was somewhat painful; i&#039;m 21 with no children, but with ibuprofen and a long nap after wards i wasn&#039;t feeling too bad. don&#039;t be scared; i was sitting on the exam table and almost backed out, so glad i didn&#039;t. i did get somewhat lightheaded during the insertion and for about 30 minutes afterwards (luckily i had a friend drive me to my appointment). i had intercourse 3 days after insertion and had no problems! my boyfriend said he couldn&#039;t feel it. i&#039;ve had light spotting off and on and some cramping/backache. overall, so far so good."