Emergency contraception, commonly known as the morning after pill, is a safe and effective way to prevent pregnancy after unprotected sex or contraceptive failure.
Emergency contraception, commonly known as the morning after pill, is a safe and effective way to prevent pregnancy after unprotected sex or contraceptive failure. The pill can be taken up to 72 hours after unprotected sex but the sooner you take it, the better the chances are that it will be effective.
The morning after pill works by releasing hormones that disrupt the normal process of ovulation. By delaying the release of an egg from the ovary, it reduces the chance of pregnancy. If ovulation has already occurred, the pill can also make it more difficult for a fertilised egg to attach to the uterus lining.
The morning after pill, like any method of contraception, is not 100% effective - there is a chance that it will not work and that pregnancy could still happen.
The morning after pill should be taken as soon as possible after unprotected sex. The pill is most effective when used within 24 hours but can be taken up to 72 hours after. Follow the instructions provided with the medication and consult a pharmacist if you have any questions.
The morning after pill is suitable for most women, including those who cannot use regular hormonal contraceptives. However, it may not be recommended for women who are allergic to its ingredients or have certain health conditions. Our pharmacist can discuss your medical history to ensure the pill is safe for you.
The morning after pill is safe when used occasionally. It does not affect long-term fertility and has been proven to be effective in preventing pregnancy. However, frequent use may lead to irregular periods or other side effects, so it’s important to discuss your options with the pharmacist.
Common side effects include:
In rare cases, more serious side effects such as abdominal pain or changes in menstrual bleeding may occur. If you experience any severe side effects, contact your GP or call 111 immediately.
Author
Dr. Adam Kirk
Revision 1.0 - 18/09/2025
*Prescribed medication may be a different brand to the ones shown