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The contraceptive pill

The contraceptive pill can prevent pregnancy when you use the right type correctly. The combined pill and progestogen-only pill differ in hormones, risks, how late a dose can be taken and advice about missed pills, illness or other medicines.

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  • The contraceptive pill is an effective, reversible method when the right product is used consistently and correctly.
  • The combined pill contains an oestrogen and a progestogen. The progestogen-only pill, often called the mini-pill, contains no oestrogen.
  • Different pills have different schedules, allowances for late doses and missed-pill rules. Follow the leaflet for your exact product.
  • The combined pill slightly increases the risk of a blood clot and is not safe for some people. A healthcare professional assesses risk factors.
  • The pill does not prevent sexually transmitted infections (STIs). Use a condom when STI protection is needed.
  • Vomiting, severe diarrhoea and certain medicines or herbal remedies may reduce protection.
  • Contraception is a personal choice. Also discuss a coil (intrauterine device), implant, contraceptive injection, condoms and other options if taking a pill every day does not suit you.

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Further reading

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M
Missed contraceptive pillsWhat to do after a missed contraceptive pill depends on the exact type, how many active pills were missed, the point in the schedule, sex without a condom, vomiting, diarrhoea and other medicines. Check the packaging and seek professional advice promptly.
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Contraceptive vaginal ringThe contraceptive vaginal ring is a flexible contraceptive device inserted into the vagina, where it gradually releases hormones. When used correctly, it reliably prevents pregnancy, but it does not protect against sexually transmitted infections (STIs). Not everyone can use a ring safely. An increased risk of blood clots, migraine with neurological symptoms, certain medicines and forgetting or being late to replace the ring need particular attention.
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Preventing pregnancyContraception helps prevent pregnancy, but methods differ in reliability, use, side effects and medical suitability. Choose a method that fits your health and wishes with a knowledgeable professional, also use condoms against STIs and seek emergency contraception promptly after unprotected sex or an error with your method.