I'm so glad you had that experience! I tossed up between an IUD and Implanon, and decided to go with Implanon because I didn't want to have the pain of inserting the IUD. I love it, it's 3 years of 99% effectiveness and it's under the skin of your upper arm so doesn't hurt at all. And the side effects for me are reduced periods and sometimes no periods for 6 months!