Emergency contraception

First things first

Emergency contraception can be used if a contraceptive method fails (for instance a condom splits or a pill is forgotten or taken late) or no contraception at all is used.

There are two forms of emergency contraception - the emergency contraceptive pill and the emergency intrauterine device (IUD).

Emergency contraceptive pill

This form of emergency contraception consists of a pill containing a special dose of the hormone progestogen. The emergency contraceptive pill can be used up to 72 hours (three days) after sex.

The emergency contraceptive pill should be taken as soon as possible after having unprotected sex, and no later than 72 hours after. 

The emergency contraceptive pill works in several ways. It may stop ovulation (release of an egg), it may stop an egg from being fertilised or it may stop a fertilised egg from implanting in the womb.

The emergency contraceptive pill is more effective the sooner after sex it is are taken. If the pill is taken within 24 hours after sex it will prevent 95 out of 100 pregnancies. If taken 72 hours after sex the pill will prevent 58 out of 100 pregnancies. Because the emergency contraceptive pill is more effective the sooner after sex it is taken, it is important that you seek emergency contraceptive advice as quickly as possible.

The emergency contraceptive pill is available free from:

  • GPs (not in Jersey)
  • family planning clinics
  • Brook Centres (for under 25s)
  • NHS walk-in centres
  • most sexual health/GUM clinics
  • some accident and emergency departments
  • some pharmacies (not in Jersey)

Women over 16 can also buy the emergency contraceptive pill from most pharmacies. The cost is £24.

Emergency intrauterine device (IUD)

An IUD can be fitted as an emergency contraceptive up to five days after sex. It has to be fitted by a specially trained doctor or nurse.

The IUD works by either stopping an egg from being fertilised or by stopping it implanting in the womb.

The emergency IUD is almost 100% effective at whatever stage it is fitted.

Most family planning clinics or Brook Centres will have at least one doctor or nurse who is able to fit IUDs. Some GPs will also have received training. It is a good idea to telephone the service before visiting to check when an appropriately trained doctor or nurse will be available.