I had sex two days ago and my boyfriend came in me ….

………..and just yesterday I started my period.  Is that normal while being on Nexplanon?

Thanks for asking! The Nexplanon is a single matchstick-sized rod that is placed underneath the skin in your upper arm. A nurse or doctor inserts the rod. Once inserted, the rod releases hormones gradually for up to three years.

After someone has the Nexplanon for 1 week, Nexplanon protects against pregnancy up to 99% for 3 years, even if ejaculation in the vagina occurs.

It is also important to know that a very common side effect of the Nexplanon can be irregular bleeding. Some people lose their period completely; some have irregular spotting, and some people bleed more regularly. So it is likely the bleeding was unrelated to the unprotected sex, and just a side effect of the Nexplanon.

Remember, hormonal forms of birth control, like the Nexplanon do not reduce the risk of STIs, only condoms and dental dams can do this.

If you have more questions or want to make an appointment at Teen Clinic give us a call at 303-442-5160