signs nexplanon is wearing off

3 min read 06-03-2025

Nexplanon, a small, flexible implant inserted under the skin of your upper arm, offers discreet and long-lasting birth control. However, like all hormonal contraceptives, it doesn't last forever. Knowing the signs that your Nexplanon implant is wearing off is crucial for maintaining effective contraception. This article will outline potential indicators that your implant's effectiveness may be waning, emphasizing the importance of consulting your healthcare provider for confirmation.

Understanding Nexplanon's Lifespan

The Nexplanon implant is designed to provide continuous contraception for up to three years. After this period, the hormones it releases gradually decrease, potentially leading to a loss of contraceptive efficacy. While the three-year mark is the average, some women experience a change in effectiveness sooner. It's essential to remember that no birth control method is 100% effective, and individual experiences can vary.

Signs Your Nexplanon Might Be Wearing Off

Recognizing the signs that your Nexplanon implant is losing its effectiveness can help you prevent unintended pregnancy. Keep in mind that experiencing one or two of these symptoms doesn't necessarily mean your implant has failed. However, if you experience several of these symptoms, especially coupled with irregular bleeding, it's time to contact your doctor.

Irregular Bleeding or Spotting

One of the most common signs that your Nexplanon is wearing off is a change in your bleeding pattern. Many women experience irregular bleeding or spotting during the first few months after implantation. However, if you suddenly start experiencing heavier or more frequent bleeding after a period of relatively regular bleeding, it could indicate the hormone levels are decreasing.

Heavier Bleeding: This refers to bleeding that is significantly more profuse or lasts longer than usual.
More Frequent Bleeding: Experiencing periods more often than you did previously.
Prolonged Bleeding: Periods lasting longer than typical for your body.
Breakthrough Bleeding: Unexpected bleeding between periods.

Return of Your Previous Menstrual Cycle

Some women find that their periods become more regular after having Nexplanon for a while. If you previously had a regular period that was disrupted by Nexplanon, a return to this pattern may signal diminishing effectiveness.

Missed Periods

While irregular bleeding is common, complete absence of periods after having previously experienced periods (even irregular ones) on Nexplanon can signal hormonal changes. Consult your doctor, as this can indicate several potential issues.

Ovulation

While Nexplanon primarily works by preventing ovulation, decreasing hormone levels might allow ovulation to occur. Symptoms of ovulation, such as changes in cervical mucus, increased libido, or mittelschmerz (ovulation pain), should be reported to your doctor. Tracking basal body temperature could also reveal changes suggesting ovulation.

Increased Risk of Pregnancy

The most obvious sign, of course, is pregnancy. If you experience any pregnancy symptoms (missed period, breast tenderness, nausea, fatigue) after three years of using Nexplanon or if you suspect your Nexplanon is failing, take a pregnancy test immediately and contact your healthcare provider.

Changes in Mood or Weight

While individual experiences differ, some users report changes in mood or weight fluctuations as hormone levels change. These changes may not be directly related to a loss of contraceptive efficacy, but it's still worthwhile discussing any significant mood shifts or weight changes with your healthcare provider.

What to Do If You Suspect Your Nexplanon Is Wearing Off

If you experience any of the above symptoms, especially if they are combined, do not delay contacting your healthcare provider. They can confirm whether your implant is still effective and discuss your options for contraception. They may perform a pregnancy test and evaluate your implant's location to ensure it hasn't migrated.

Important Note: This information is for educational purposes only and does not constitute medical advice. Always consult with your doctor or healthcare provider before making any decisions about your birth control.

Scheduling Removal and Replacement

Once your Nexplanon implant reaches the three-year mark, or if you're experiencing symptoms suggestive of its weakening, scheduling removal and potential replacement is advisable. Your doctor can remove the implant and discuss your choices for continuing contraception, which might include a new Nexplanon implant, another hormonal method, or a non-hormonal option. Regular check-ups are key to maintaining reproductive health and effective birth control.