12 Types of Birth Control
What it's called: NuvaRing
What it does: The ring is made of flexible plastic and delivers estrogen and progestin, just like the combination pill. You place the ring in your vagina for three weeks, and then remove it for one week so that you have a regular period.
Who should avoid it: Women who smoke, or have blood clots or certain cancers, should not use the NuvaRing.
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