"i got nexplanon inserted early december 2014. i had two months of bliss, nothing changed. it was mid-february where things started getting jacked up. i started getting my period 6 days on, 6 days off, and that has lasted me up until now, september. i have also been getting headaches that last days, and do not go away with the help of ibuprofen, 1000 mg does nothing to help. i have already talked with my doctor and she agreed to take it out soon to try something else. i normally wouldn&#039;t care so much about the bleeding, but it&#039;s the stiff neck, headaches and frustration from that i can&#039;t handle."