If my girlfriend is on Nexplanon and has a period, does it still work if she gets ejaculated in?

Once someone starts taking a hormonal method of birth control, like the Nexplanon, they will have to abstain or use a back-up method (like condoms) for one week until it will be effective in preventing pregnancy. It takes one week for the hormones to “kick in” and be effective in preventing pregnancy.

The contraceptive implant is also known as the Nexplanon (formerly known as the Implanon). Nexplanon is a long term, reversible hormonal birth control method used to effectively prevent pregnancy. The hormones prevent ovulation – the process when the ovaries release an egg – and thicken cervical mucus.

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.

Nexplanon is 99% effective in preventing pregnancy for up to three years, but it does not protect against any STIs!

Something that is important to mention with the Nexplanon though is the effect it may have on your period. Nexplanon contains a hormone called progesterone. When someone is on progesterone, they may not have a typical period. For some people, this means that someone will not have a period at all, or they may experience irregular spotting, or they can experience something similar to a light period. How your body reacts to progesterone will depend on the person.

If you want to make an appointment or to learn more about the Nexplanon, give us a call at 303-442-5160.