This is a soft transparent flexible ring that is placed in the vagina. It produces estrogen and progesterone at slow dosage levels. It stays in the body for three weeks and removed on the fourth week when menstruation is expected. The entire process is repeated every month.

Advantages
•Its 99.7% effective in preventing pregnancy
•It’s a good alternative for those that find it hard remembering to take pills every day or are not comfortable using implants.
•Compared to the pill unscheduled bleeding is unlikely to occur
 
Disadvantages
•It may cause side effects such as nausea, breast tenderness or soreness, unscheduled bleeding or headaches
•Serious complications such as deep vein thrombosis (blood clots) heart attacks or strokes can happen but are rare.
•It does not protect against STIs
•Its not suitable for just anybody therefore it is necessary for one to use under the consultation of a certified medical expert.
 
References
Hormonal Methods. C 2014 Boulder Valley Women’s Health Center. Removed from: http://www.boulderwomenshealth.org/our-services/birth-control/hormonal-methods/
Contraception-vaginal ring. Better Health Channel. Removed from: https://www.betterhealth.vic.gov.au/health/healthyliving/contraception-vaginal-ring