The ring steadily releases the hormones oestrogen and progestogen into your bloodstream, which prevents the release of an egg each month.
It also thickens the cervical mucus, which makes it more difficult for sperm to move through the cervix, and thins the lining of the womb so a fertilised egg is less likely to implant itself.
You can start using the vaginal ring at any time during your menstrual cycle if you’re not pregnant.
You leave it in for 21 days, then remove it and have a 7-day ring-free break. You’re protected against pregnancy during the ring-free break. You then put a new ring in for another 21 days.
You’ll be protected against pregnancy straight away if you insert it on the first day of your period (the first day of your menstrual cycle).
If you start using the ring at any other time in your menstrual cycle, you’ll be protected against pregnancy as long as you use additional contraception (such as condoms) for the first 7 days of using it.
You can discuss this with your GP or nurse to decide when might be the best time for you to start using it and how to insert and remove it.
Unlike a diaphragm or cap, the ring doesn’t need to cover the entrance to your womb (the cervix) to work.
You should be able to check that the ring is still there using your fingers. If you can’t feel it but you’re sure it’s there, see a GP or nurse. The ring can’t get “lost” inside you.
After the ring has been in your vagina for 21 days (3 weeks), you remove it. This should be on the same day of the week that you put it in.
Removing the ring should be painless. If you have any bleeding or pain or you can’t pull it out, see your GP or nurse immediately.
When you’ve taken the ring out, you don’t put a new one in for 7 days (1 week). This is the ring-free interval. You might have a period-type bleed during this time.
After 7 days without a ring in, insert a new one. Put the new ring in even if you’re still bleeding. Leave this ring in for 21 days, then repeat the cycle.
You can have sex and use tampons while the ring is in your vagina. You and your partner may feel the ring during sex, but this isn’t harmful.
If the ring has been in for up to 7 days after the end of week 3 (up to 4 weeks in total):
If the ring has been in for more than 7 days after the end of week 3 (more than 4 weeks in total):
Put in a new ring as soon as you remember, and use additional contraception (such as condoms) for 7 days.
You may need emergency contraception if you had sex before you remembered to put the new ring in, and the ring-free interval was 48 hours longer than it should have been or more (9 days or more in total).
Sometimes the ring may come out on its own (expulsion). It may happen after or during sex, or if it wasn’t put in properly.
What you should do depends on how long the ring is out for and which week in your cycle you’re on.
If the ring is out for less than 3 hours (regardless of where you are in your cycle):
If the ring is out for more than 3 hours in the first or second week:
If the ring is out for more than 3 hours in the third week, throw it away and choose one of two options:
If you choose not to put a ring in, you should put a new ring in 7 days after the previous one came out. You can only choose this option if the ring was in continuously for the previous 7 days.
Whichever option you choose, use additional contraception for 7 days and see a GP or nurse if you’ve had sex in the last few days, as you may need emergency contraception.
Some women can’t use the vaginal ring.
It may not be suitable if you:
If you don’t smoke and there are no medical reasons why you can’t use the ring, you can use it until you’re 50 years old.
You can start using the vaginal ring 21 days after giving birth, and you’ll be protected against pregnancy straight away.
If you start the ring more than 21 days after giving birth, you need to use additional contraception (such as condoms) for 7 days after you insert the ring.
If you’re breastfeeding a baby under 6 months old, you should use a different method of contraception. This is because the vaginal ring can sometimes reduce your flow of milk.
You can start using the ring immediately after a miscarriage or abortion, and it’ll work straight away. You don’t need to use additional contraception.
Advantages:
Disadvantages:
There’s a very small risk of some serious side effects when you use a hormonal contraceptive like the vaginal ring.
For most women, the benefits of the ring outweigh the possible risks, but you should discuss all risk and benefits with a GP or nurse before you start it.
A very small number of people using the vaginal ring may develop a blood clot in a vein or an artery. Don’t use the ring if you’ve had a blood clot before.
Research suggests that people who use the vaginal ring have a small increased risk of being diagnosed with breast cancer compared with those who don’t. But this reduces with time after you’ve stopped using the ring.
Research also suggests there’s a small increase in the risk of developing cervical cancer with long-term use of oestrogen and progestogen hormonal contraception.
You can get contraception for free, even if you’re under 16, from:
But not all clinics are able to provide the vaginal ring, so it’s worth checking first.
You won’t be able to get a prescription for more than 4 months’ supply at a time because this is its shelf life.
The only time a professional might want to tell someone else is if they believe you’re at risk of harm, such as abuse.
The risk would need to be serious, and they would usually discuss this with you first.