結果 : how long after does plan b not work
2:46

The Science of 'Plan B' - Emergency Contraception

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Why The Morning-After Pill Is At Risk

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1:41

Where to get the morning after pill (for free) | NHS

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How do contraceptives work? - NWHunter

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Will The Plan B Pill Work After Ovulation? | Emergency Contraceptive #shorts

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The ‘Morning After’ Pill Only Works for Women Under a Certain Weight?

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