"everybody body reacts different to certain things so for my personal experience i don&#039;t have a problem with it so far. i got the nexplanon late november before thanksgiving and i haven&#039;t gotten my period the next month only side affects i&#039;ve been having is cramps just on and off and sometimes i feel this sharp pain in my back here and there or a headache which i don&#039;t get anymore. cramps are not that bad don&#039;t happen everyday but pain wise it hurt,the sharp pain in my back hurts but doesn&#039;t happen everyday otherwise its pretty cool i haven&#039;t really experienced so much so far because i only had it in for almost 2 months"