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12 Types of Birth Control
What it's called: Lybrel, Seasonale, Seasonique
What it does: These pills prevent pregnancy and allow you to have a period only every three months. (Note: Lybrel stops your period for a year, but you must take a pill every day, year-round.)
Who should avoid it: There's no evidence proving it's dangerous not to have periods, but there is still no long-term research to show that it is safe.
Next: Vaginal ring
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