Etonogestrel ring (NuvaRing): how it works and what to expect
NuvaRing is a flexible plastic ring you insert vaginally for three weeks at a time. It releases hormones to prevent pregnancy. Here's how effective it is and what side effects users report.
What NuvaRing is
Etonogestrel ring, sold as NuvaRing, is a small flexible plastic ring you place inside your vagina. It stays there for three weeks, then you remove it for a one-week break. During that week, you'll typically get your period. After seven days, you insert a new ring and repeat the cycle.
How it works
The ring releases two hormones: ethinyl estradiol and etonogestrel. These are the same hormones found in birth control pills, but delivered through the vaginal tissue rather than swallowed. This method bypasses your digestive system, which can affect how your body absorbs the hormones.
Effectiveness
When used perfectly (inserted and removed on schedule), NuvaRing is about 99% effective at preventing pregnancy. With typical use (which accounts for missed insertions or removals), effectiveness drops to around 91%. This is better than condoms alone but slightly lower than the pill in typical use.
Side effects
Common side effects include:
- Vaginal irritation or discharge
- Headaches
- Nausea
- Mood changes
- Breast tenderness
- Weight gain or loss
Most side effects settle within the first few months. If they persist or worsen, talk to your provider about alternatives.
Cost and access
NuvaRing typically costs between £60 and £130 per month without insurance, depending on your pharmacy and location. Many insurance plans cover it. You can get NuvaRing through telehealth appointments with providers who offer contraception services.
Who shouldn't use it
You shouldn't use NuvaRing if you have a history of blood clots, stroke, or certain types of migraine. Discuss your full medical history with your provider before starting.