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Menstruation is controlled by cyclical changes of hormones. The release of these hormones is involuntary and therefore little control is exerted on the timing of menstruation. Planned pregnancy may be the only way humans may use to interfere with the cycle.

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16y ago

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What are the chances a girl is pregnant if she gets her period late and it ends early?

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That is usually not normal because you shouldn't get a period while on those pills you might want to see a doctor.


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Why did your period come 4 days early?

why did my period come 4 days early?


If your period comes on early does that mean that you are not pregnant?

if your period comes on early does that mean that you are not pregnant?


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