Will sex make my period start?

Question

I’m supposed to start my period in 4 days and I have cramps today. If I have sex today would it start my period earlier?

Answer

Menstrual cycles are hormonally driven.

Answer

I’ve had it happen after orgasm if I’m starting on the next day or two.

Answer

Yes, orgasms near your start date can trigger your period to start early.

Answer

I've had it happen where one or 2 days before it's due sex helps "induce' it.  Never 4 though.  Low level cramps for 3-5 days before my period starts is normal for me.

Will sex make my period start?

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