IMPLANON™ is more than 99% effective: the chance of getting pregnant is less than 1 pregnancy per 100 women who use IMPLANON™ for 1 year when IMPLANON™ is inserted correctly. IMPLANON™ prevents pregnancy in several ways. The most important way is by stopping release of an egg from your ovary. IMPLANON™ also thickens the cervical mucus, which acts as a barrier to prevent sperm from fertilizing an egg.
It is not known if IMPLANON™ is as effective in very overweight women because clinical studies did not include many overweight women. Certain medicines may make IMPLANON™ less effective, and you may also need to use a barrier method of contraception while you are using these medicines.
Most women can't see IMPLANON™ after insertion. Only you and your healthcare provider will know you're using it. For this reason, you should tell all of your healthcare providers if you are using IMPLANON™.
You should be able to feel where IMPLANON™ is by gently pressing on your skin in the area where it was inserted. However, to reduce the risk of infection, you should not touch the insertion site until it has healed.
Once IMPLANON™ is successfully removed, your ability to get pregnant usually returns quickly. Some women have become pregnant within days after removal of IMPLANON™. After removal, if you do not want to become pregnant, you should start another birth control method right away.