"i got the nexplanon put in in april of 2015. it is now august 2015 and it has been pretty ok. i have had only one full on period accompanied with mood swings, headaches, bad cramps, and heavy flow. other than that i spot a lot. i will have 3 days of light spotting and then 2 days of nothing, then a few more days of spotting, then nothing for a few weeks. sometimes it&#039;s not even heavy enough to show on a panty liner. it&#039;s just more annoying than anything but i&#039;d rather have that than periods. i have not gained weight, but i did start getting acne. i have not gotten pregnant so i guess it is doing its job and there are no surprise side effects that the doc didn&#039;t warn me about. i prefer the ring, but w/ breastfeeding this is my option."