"i was on nexplanon for 8 months. it works great preventing pregnancy, however; the side effects for me at least were, and still are horrid. i had it removed 4 months ago and i am currently still coping with the side effects. i never once had a period nor spotting while on nexplanon, i did however have headaches, migraines, horrific mood swings, no sex drive, no motivation, depression, cramping, and arm pain. now 4 months after removal i still suffer from these same side effects only add on severe cramping without having a period, in and out of hospitals for chronic nausea, ovarian cysts, and stuff doctors haven&#039;t even been able to pin point. it&#039;s not worth it.. use condoms!"