A monthly contraceptive ring, offering the efficacy of the pill, is now available in the UK.
The NuvaRing is a flexible transparent ring which disperses 15 mcg of oestrogen (ethinylestradiol) and 120 mcg of progestogen (etonogestrel) and is absorbed through the vaginal lining directly into the bloodstream.
Despite being satisfied with the pill, 71% of the women who were involved in the trials decided to continue using NuvaRing.
In another study, more than nine out of 10 women said they would recommend the method to a friend.
Dr Tina Peers, consultant for Surrey Primary Care Trust, said: "NuvaRing is an important addition to the options we have to offer women. We know that when a woman uses a contraceptive that suits her lifestyle, she is more likely to use it appropriately and this reduces the risk of an unplanned pregnancy.
"In a clinical study, the majority of women considered the vaginal ring easy to use and convenient."
There are 15 methods of contraception available in the UK and the aim of contraception counselling is to allow women to choose a method that fits in with their lifestyle.
Although 76% of women under 50 use some form of contraception, half of pregnancies are unplanned.