"i got the nexplanon back in august 2015. the insertion didn&#039;t hurt at all but it bruised really badly. the bruising went away after a few days and now the only way i know it&#039;s there is i can feel it in my arm. i really haven&#039;t noticed any side effects i get breakouts but i got those before i got the nexplanon so i don&#039;t think it&#039;s causing them and i haven&#039;t gained any weight. i get a very light period for 5-7 days about every 2-3 months or so and i do get cramping my first day but nothing a few aleve doesn&#039;t fix. overall i&#039;m happy with it so far."