Yes, a girl can get pregnant while using the birth control implant in the arm, but it's extremely rare. The birth control implant (like Nexplanon) is one of the most effective forms of contraception available.
Understanding the Effectiveness of the Birth Control Implant
The birth control implant is a small, flexible rod inserted under the skin of the upper arm by a healthcare professional. It releases a hormone called progestin, which prevents pregnancy by:
- Suppressing ovulation (the release of an egg from the ovaries)
- Thickening cervical mucus, making it difficult for sperm to reach the egg
- Thinning the lining of the uterus, making it less likely for a fertilized egg to implant.
Pregnancy Rates with the Implant
- Highly Effective: When used correctly, the implant is more than 99% effective. This means that fewer than 1 out of 1000 women using the implant for 3 years will get pregnant.
- Typical Use vs. Perfect Use: The high effectiveness rate is consistent for both "typical use" and "perfect use," unlike some other methods of birth control where effectiveness relies heavily on consistent and correct usage.
Factors That Could Affect Effectiveness (Rare)
While rare, certain factors could theoretically influence the implant's effectiveness:
- Medications: Some medications, though uncommon, may interfere with the hormones released by the implant. It's crucial to inform your healthcare provider about all medications and supplements you're taking.
- Improper Insertion: Very rarely, if the implant is not inserted correctly by a trained healthcare professional, its effectiveness could be compromised.
- Weight: Some studies have suggested that the implant's effectiveness might be slightly reduced in women with a higher body mass index (BMI). However, it is still a highly effective method for women of all sizes.
What to Do If You Suspect Pregnancy
If you experience symptoms of pregnancy while using the implant (missed period, nausea, fatigue), take a pregnancy test as soon as possible and consult with your healthcare provider.
Important Note About STIs
The birth control implant does not protect against sexually transmitted infections (STIs). Consistent and correct use of condoms is essential for STI protection.
