"i got implanon in october 2011 while on my period. at the end of that cycle i did not get my period again until october 2012. it was the best year ever! no mood swings, not worrying about a pill, my weight stayed the same, and my sex drive increased. i&#039;m also a huge whimp about needles but insertion didn&#039;t hurt. however, from oct 2012- present (jan 2013) i&#039;ve gotten my period erratically from every other week to every 2 weeks. i&#039;m going on vacation soon and the unpredictability of the medicine is starting to seriously irritate me (and put a damper on my daily routine). i hate to give it up because the first year spoiled me so much! but i&#039;m afraid the aggravation of the unknown may have me removing it in the very near future.."