"i had the implanon in for all three years (5/2009-3/3012). it was pretty terrible though. my hair fell out, i developed asthma and chronic bronchitis, and i had terrible cramps and bleeding twice a month. my doctors initially thought i had developed lupus (i didn&#039;t, i&#039;ve been tested every six months for the last three years). i went from running 5 miles/day to not being able to hold a conversation without needing an inhaler. the removal was also awful. i never got pregnant though."