Thanks for asking!
It is important to say that the only 100% effective method to protect from pregnancy is Abstinence. With that being said, if someone has been on the Nexplanon for at least 1 week, they are 99% protected from pregnancy for up to 3 years, even if ejaculation in the vagina occurs.
Remember, hormonal methods of birth control ( like the Nexplanon) do not protect against STIs. Only condoms and dental dams can protect against STIs. You can get condoms and dental dams for free at Teen Clinic!
If you have any more questions, or want to make an appointment at Teen Clinic, give us a call! 303-442-5160