Ring contraceptive methods

The contraceptive vaginal ring is a flexible, thin ring that's inserted into the vagina, typically for three weeks at a time. It releases steady amounts of hormones (estrogen and progestin) to prevent ovulation, thicken cervical mucus to block sperm, and thin the uterine lining to prevent pregnancy. After three weeks, the ring is removed for a week to allow menstrual bleeding. It is a convenient, reversible birth control option with high effectiveness when used correctly, and it can be easily replaced each month. The ring does not protect against sexually transmitted infections.