"i&#039;ve had nexplanon for 6 months. i have gained 10 lbs which is what i didn&#039;t want to happen especially right after having a baby! i have been having anxiety attacks out of nowhere. the spot where it&#039;s located in my arm hurts from time to time. i have been spotting for a constant 3 weeks. i may end up getting it removed before the 3 years."