See your provider to get it removed. Once it is removed, the hormones in your body should go back to normal pretty quickly. There may be a delay in your ability to get pregnant after getting the implant removed. Many women get pregnant soon after stopping the implant. If you do not want to get pregnant, start a different method immediately after getting your implant removed. Depending on your body, it can take up to 2 months to get back to your regular cycle after having the implant removed.
FPA the sexual health charity. (2017). Your guide to the contraceptive implant. Retrieved from https://www.fpa.org.uk/sites/default/files/contraceptive-implant-your-guide.pdf