The vaginal ring is a soft plastic ring that contains two hormones – oestrogen and progestogen. These are similar to the hormones that are produced by the ovaries and used in the Pill (combined pill or oral contraceptive pill).

Photo of vaginal ring
If used correctly the vaginal ring can be over 99% effective at preventing pregnancy. If you forget to put a new ring in, use it incorrectly or take certain medications, it might only be 93% effective.
The vaginal ring works by stopping the ovaries from releasing an egg each month.
Illustration of eggs not being released by ovaries
It also thickens the fluid around the cervix (opening to the uterus/womb). This helps to prevent the sperm from entering.
Illustration of mucus in cervix
You squeeze the vaginal ring and insert it into your vagina (like inserting a tampon).
Illustration of vaginal ring being inserted inside vagina
A new vaginal ring is needed every 4 weeks. Each ring stays in the vagina for 3 weeks. You then take it out and throw it away and wait 7 days before inserting a new ring. Most users cannot feel the ring once it is in the vagina. You will usually have your period (bleeding from your vagina) a few days after removing the ring. You can skip your period by missing the 7-day break and inserting a new ring straight away.
When you start the vaginal ring for the first time or after a break it can take up to 7 days to start working to prevent pregnancy. This depends on the timing of your menstrual cycle and if you are already using contraception. Speak with your doctor, nurse or pharmacist for more information.
Your doctor or nurse will provide a script which you can take to the pharmacy, who will sell you the vaginal ring. The vaginal ring should be used within 4 months of purchase from the pharmacy.
The vaginal ring may not work if:
Possible side effects for a small number of users can include:
These side effects often settle with time. The vaginal ring has not been shown to cause weight gain.
A small number of people find the vaginal ring uncomfortable. Partners are usually not bothered by the ring during sex.
The vaginal ring causes a very small increase in your chances of a deep vein blood clot/thrombosis, heart attack and stroke. The vaginal ring is associated with a very small increase in the risk of cervical and breast cancer which reduces with time after stopping.
The vaginal ring will not harm the pregnancy. It is safe to continue the pregnancy (and stop the vaginal ring) or to have an abortion.
If you are breastfeeding, the vaginal ring cannot be used until your baby is 6 weeks old. After 6 weeks you can use the ring but other types of contraception might be more suitable choices.
If you are not breastfeeding the vaginal ring can generally not be used until your baby is 3 weeks old. After 3 weeks you can use the vaginal ring if you do not have any medical risk factors (check with your doctor or nurse or pharmacist).
You can stop the vaginal ring at any time and your fertility will usually quickly return to what is normal for you.
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Last updated: 7 June 2021
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