Implanon effectiveness and failure rate

  1. avatar
    Pam Griffiths

    Hi, I’m 17 and I am on an Implanon implant since the beginning of 2015. I was a virgin then but yesterday I had sex with my boyfriend for the very first time. It is worth mentioning that there were no full penetration because whenever he tried, it was painful and uncomfortable. At the end we gave up and now I’m glad we didn’t do it because I would’ve been much more worried than I’m now. Anyway, what are the chances of getting pregnant while taking Implanon? And why is my vagina sore?

    09/08/2015 at 8:36 am
  2. avatar
    Sandra F.
    Fertility Counselor


    If it is the very first time you engage into sexual intercourse, then it is totally normal that your vagina feels sore. Many women have even a slight vaginal bleeding during the first time.

    Chances of getting pregnant while on Implanon are very low as it is a highly accurate contraceptive. However, as in all contraceptives, there’s a remaining percentage of risk.

    09/08/2015 at 5:40 pm
  3. avatar
    Esther seymour

    So, there’s no possible chance to get pregnant?

    03/29/2018 at 11:04 pm
    • avatar
      Sandra F.
      Fertility Counselor

      Hello Esther seymour,

      The failure rate for Implanon is 0.07%.

      04/03/2018 at 1:27 pm
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