Contraception
How well does contraception work?
Every contraception method has two numbers: how well it works used perfectly, and how well it works in real life. The real-life number is the one to plan around. Using NHS figures for typical use, the implant and coils are over 99% effective, the pill 91% and condoms 82%.
Which contraception is most effective?
Perfect use means using a method exactly right every time. Typical use includes missed pills and slipped condoms, and it’s the number to plan around. NHS figures:
| Method | Typical use | Perfect use |
|---|---|---|
| Implant, hormonal coil (IUS), copper coil (IUD) | Over 99% | Over 99% |
| Injection | 94% | |
| Pill (combined or progestogen-only), patch, vaginal ring | 91% | Over 99% |
| Condoms | 82% | 98% |
| Internal condoms | 79% | |
| Natural family planning | 76% |
Which method protects against infections?
Condoms are the only method that protects against both pregnancy and sexually transmitted infections, including HIV.
Is cycle tracking contraception?
The fertile days in Seventh are estimates. They’re not a way to avoid pregnancy.
A doctor, pharmacist or sexual health clinic can help you pick a method that suits your body and your life.
Frequently asked questions
What is typical use?
How well a method works in everyday life, including missed pills and slipped condoms. Perfect use is how well it works when used exactly right every time.
Does the pill work if I never miss one?
Used perfectly, the pill, patch and vaginal ring are over 99% effective. With typical use the NHS figure is 91%.
Where can I get help choosing?
A doctor, pharmacist or sexual health clinic can help you pick a method that suits your body and your life.
Sources
Seventh is a free period and cycle tracker for iPhone and iPad, by doogud. This article is general information, not medical advice. If something feels wrong, see a doctor.
