An IUD (also known as a coil) is a small plastic and copper device that is fitted in your uterus up to five days (120 hours) after unprotected sex or up to five days from the earliest date you could have ovulated. It is the most effective method of emergency contraception. It can be fitted by your GP or sexual health clinic. It takes 15 – 20 minutes to fit and fitting can be uncomfortable.
Once fitted you can keep the IUD in for 5-10 years, as a reversible form of contraception (depending on type.)