Once you are sexually active does your period get behind?

Answer:
Not unless you're pregnant. It shouldn't affect your period at all. Use protection.

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No

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my cycle changed, when i started to have sex, not by much a few weeks, everyone is different though it may not fo ru

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no, only if you're pregnant

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Not at all...but i have heard from an aunt who used to say that if a woman sleeps with a man who has another woman that her periods will fall on the same date as the other woman and vice versa...old wives tales i think lol.

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