"i have been on the nexplanon going on 2 years now. i&#039;ve only had 1 actual period and have spotted at least 3-4 times. this month august 2015, i have spotted once on the 4th of this month lasted for 5 days and now i am spotting again, 13th of this month. this is the first time this has happened since i have been on this birth control. i have gained quite a bit of weight since i&#039;ve been on the birth control. my mood swings have gotten a lot worse and i&#039;m always tired and don&#039;t have the energy to do anything. i always have this bloating feeling. good thing is i have not gotten pregnant since i&#039;ve been on this birth control."