How are NuvaRings used for contraception?
One NuvaRing is placed in the vagina in the vicinity of the cervix and is worn for three weeks. It is then removed. The fourth week is ring-free to permit withdrawal bleeding. The delicate two-inch in diameter ring delivers both an estrogen and progestin and this stops ovulation. Used correctly and consistently the ring leads to only 3 pregnancies among 1,000 women using the ring for one year! You do not need a back-up method during the seven ring-free days.
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