Understanding Nexplanon
Nexplanon is a highly effective form of long-acting reversible contraception (LARC) that is implanted under the skin of a woman’s arm. It releases etonogestrel, a progestin hormone, which prevents ovulation and thickens cervical mucus to hinder sperm from fertilizing an egg. This contraceptive method is considered to be over 99% effective, making it one of the most reliable forms of birth control available.
How Effective is Nexplanon?
According to studies, Nexplanon has a failure rate of less than 1%, meaning that out of 100 women using this contraceptive method for one year, fewer than 1 will become pregnant. The contraceptive is effective for up to 3 years, and its effectiveness does not wane over time. However, effectiveness can be influenced by several factors:
- Incorrect Placement: If Nexplanon is not inserted properly, its effectiveness may diminish.
- Hormonal Interactions: Certain medications, such as some anticonvulsants and antibiotics, can interfere with the hormone released by Nexplanon.
- Body Weight: Some studies suggest that for women with a higher BMI, Nexplanon’s effectiveness may be reduced.
Can You Get Pregnant on Nexplanon?
Even though Nexplanon is highly effective, there are rare instances in which women can become pregnant while using it. According to the Centers for Disease Control and Prevention (CDC), some pregnancies have been documented in users of Nexplanon. In fact, a study published in the journal “Contraception” highlighted a few cases where unintended pregnancies occurred due to various reasons.
Case Studies of Pregnancy on Nexplanon
While the occurrences are infrequent, they can happen. Here are some case studies:
- Case Study 1: A 27-year-old woman who had Nexplanon implanted was hospitalized for severe headaches and was later diagnosed with a condition requiring steroid treatment, which is known to affect hormone release. She subsequently became pregnant despite having Nexplanon.
- Case Study 2: A 33-year-old woman reported pregnancy two years after insertion. Follow-up revealed that nausea and frequent vomiting during her pregnancy were likely attributed to the hormonal changes due to Nexplanon, leading to a misdiagnosis and the belief that the implant was still working.
- Case Study 3: An obese 25-year-old woman, who was overweight when she received the implant, experienced unexpected weight gain, which may have contributed to reduced effectiveness.
Signs of Pregnancy While on Nexplanon
It’s crucial for women using Nexplanon to be vigilant about any signs of pregnancy. Some common symptoms include:
- Missed period
- Nausea or vomiting
- Breast tenderness
- Increased fatigue
- Frequent urination
What to Do If You’re Pregnant on Nexplanon
If you suspect pregnancy while on Nexplanon, it is vital to take a pregnancy test and consult a healthcare professional promptly. If the test is positive, the doctor will likely remove the implant but will provide guidance on the healthy continuation of the pregnancy.
Key Takeaways
- Nexplanon is an extremely effective contraceptive but is not 100% foolproof.
- Pregnancy on Nexplanon can occur due to improper implantation, hormonal interactions, or personal health factors.
- Awareness of the possible symptoms of pregnancy is critical in ensuring timely action.
Conclusion
While it is highly unlikely to get pregnant on Nexplanon, it is not entirely impossible. Understanding the factors that may impact its effectiveness and being mindful of the body’s signs can greatly help in family planning. Women considering or currently using Nexplanon should keep an open dialogue with their healthcare provider to ensure the best outcomes for their reproductive health.
