Final answer:
The contraceptive vaginal ring, known as Nuvaring, is a flexible ring inserted into the vagina. It releases hormones to prevent pregnancy by stopping the release of eggs and thickening cervical mucus. However, it has disadvantages such as daily administration, the risk of irritation, increased blood clot risk, and no protection against STIs.
Step-by-step explanation:
The contraceptive vaginal ring, commonly known as Nuvaring, is a thin, flexible ring that is inserted into the vagina. It releases the hormones progestin and estrogen, which prevent pregnancy by stopping the ovaries from releasing eggs and thickening the cervical mucus to prevent sperm from joining the egg. While the vaginal ring is an effective form of contraception, it does have some disadvantages. These include the need for daily administration, the risk of irritation or discomfort in the vagina, the increased risk of blood clots, and the lack of protection against sexually transmitted infections.