"i had the mirena inserted on friday (it&#039;s been two days).  it is very different for every woman as my doctor told me but this was my experience: they will take measurements first which is often a bit worse than the actual insertion. my experience, overall, was not bad. i had some pretty intense cramping, had to take really deep breaths, and remember it is only going to last a few seconds. once it was done, i felt a little shakey and a little dizzy. the first night was uncomfortable, but i woke up the next day feeling much better and now i barely have any cramps at all. the important thing my doctor told me is to give your body a chance to get used to it. so far i am looking forward to not having to pop a pill every day!"