Unfortunately it is trial-and-error or success (
) with hormones and how your own body reacts with them since our chemistries are so different; also in how we tolerate any side effects with them. I don't have any experience with Implanon but a friend also had depo-provera shot intially for 3 mos, then the implant, because she had no side effects and it stopped her periods during this time. I did not have this experience with the depo-provera shot and had to go other routes.
I will be hoping for the best meanwhile for you that it will be a success and what you are looking for with your care. If you have a chance and feel up to it, please let us know how you are doing. Best wishes.