"my experience with this has been absolutely rubbish. it&#039;s 99.9% effective because i have been on my period for about 90% of the time. i had the implant inserted in 2014, i&#039;ve had it in for 2 years and i my periods and mood swings have been dreadful, i was told by the doctors it would take about 7 months to actually settle and not to have intercourse with my partner until it had! after 7 months (i know we waited) my periods were much more irregular and i was depressed and down for no reason. the only good thing about this is i haven&#039;t became pregnant. but i am going to have it out next week because i was admitted into hospital for blood loss because of my period !! i do not recommend this to any woman (or teen) whom is considering the implanon."