"i had the implanon inserted feb.15 2011, now it&#039;s a little hard to to compare to some experiences because i was on depo before the insertion, but the only side effects that i have had is the occasional breast tenderness. i believe that the depo is now finally out of my system, so now i have periods but they are on the lighter side (lasting about 4-5 days) and i may get a small headache on the first day of the period. other then that i have no mood swings, no fatigue, no weight gain, no hot flashes, and my sex drive is completely fine, in fact if not better! when i was having this put in i did not feel a thing (except the small prick of the needle) i couldn&#039;t even feel the doctors hands on my arm! i recommend this birth-control."