"first i had explanon then they changed it to nexplanon. this is my 3rd time having it in so safe to say i love it. i have 2 periods a year sometimes last 2 weeks sometimes a couple of days.  i do get very light spotting from time to time. i have gained plenty of weight but not in the right places. i do cramp even if i get no cycle but doesn&#039;t bother me.  i have never had a scare n i love 2 cycles a year.  works soon as you put it in. stops working soon as it is out."