"as everyone else said the effectiveness of this is for me 100%. i did not get on this medication till i started a serious relationship with my boyfriend and i&#039;ve always used condoms. the iud it&#039;s very effective and not noticeable at all. at first when i got it implanted it was very painful, i&#039;ve never had kids so that is one reason it was. i thought that them putting it in was not even close to as bad as the next 48hrs. i do not mean to scare anyone but i had to take 800mg of advil for 3 days after and i could tell when it was wearing off. i could not walk at times. but all of the pain is worth it. the hormones free is also with it"