"i had nexplanon inserted in december 2014 after giving birth to my first child in october 2014.  the first couple of months were rocky.  off and on periods.  one day i was fine, the next i would bleed.  mostly light bleeding but some heavy.  now, october 2015, i have not have any spotting or bleeding a since april (at least) and all of the sudden i start bleeding today.  i have had bad weight gain with this method.  and call me crazy (but i know a couple others  that have experienced this as well)....i feel pregnancy symptoms sometimes.  i have actually felt what feels like movement as if i am pregnant and the baby is kicking.  weird.  nausea.  horrible headaches.  i am considering switching to another method.  i have tried pill and depo."