The copper IUD (copper intrauterine device) is a small, T-shaped contraceptive device made from plastic and copper. It is inserted into the uterus by a trained health professional. It can prevent an egg from implanting in the womb or being fertilised.

The copper IUD can be inserted up to 5 days after having unprotected sex. It does not interact with any other medication and you can choose to have the copper IUD left in as an ongoing method of contraception. The copper IUD is more effective than the emergency pill at preventing pregnancy after unprotected sex.

The copper IUD can be used in most cases, including in those who have never been pregnant or are HIV positive. You should not use a copper IUD if you have:

• An untreated STI or pelvic infection.
• Certain abnormalities of the womb or neck of the womb.
• Unexplained bleeding from your vagina (for example, in between periods or after sex).

The copper IUD should not be fitted if there is a chance that you might already be pregnant (for example, if you have had previous episodes of unprotected sex).

• Most can use the copper IUD, including those who have never been pregnant.
• It can be used if you are breastfeeding.
• Your normal fertility returns as soon as the copper IUD is taken out.
• It is not affected by other medicines.
• It is more effective than the emergency pill.

• An copper IUD does not protect against STIs.
• In less than 1 in 1000 cases the copper IUD can make a hole in the womb or the neck of the womb and may need to be removed with an operation.
• The copper IUD can be expelled from the womb (expulsion) or can move. This is uncommon but is more likely to happen soon after it has been fit.
• The procedure can be uncomfortable.

You can get the copper IUD for free through the NHS from our clinics or some GP surgeries.

You can use the service finder to find a service near you.