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Spoiler alert! Wishing on a dandelion can't help prevent pregnancy after unprotected sex or birth control. Plan B One-Step can help. Use as directed.
Plan B One-Step is one tablet that contains levonorgestrel, a hormone that has been used in many birth control pills for several decades. Plan B One-Step contains a higher dose of levonorgestrel than birth control pills, but works in a similar way to help prevent pregnancy.
Plan B One-Step works mainly by stopping the release of an egg from the ovary. It is possible that Plan B One-Step may also work by preventing fertilization of an egg (the uniting of sperm with the egg) or by preventing attachment (implantation) to the uterus (womb).
When taken as directed, Plan B One-Step can significantly decrease the chance you will get pregnant. About 7 out of 8 women who would have gotten pregnant will not become pregnant after taking Plan B One-Step.
But remember: Plan B One-Step should not be used as a regular birth control method because it’s not as effective.
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