Well, if youve traveled across time zones, your internal menstrual clock can actually get thrown off.

Buthow longjet lag can delay your period?

Thats a whole other question.

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Experts in This Article

Charis Chambers is a board-certified OB/GYN also known as The Period Doctor.

You may be thinking:How is this even a thing?

!But its true.

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Charis Chambers is a board-certified OB/GYN also known as The Period Doctor.

It sets the tempo and tone for your body, Dr. That includes determining when different hormones should be released, like melatonin to make you feel sleepy.

Your internal clock is synced to the rhythm of your original time zone.

So when you fly to a new one, that clock temporarily gets thrown off, explains theMayo Clinic.

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Birth control can factor in, too.

If you take the pill, missing just one dose (which can definitely happen amidst travel chaos!)

can shift your cycle, according toPlanned Parenthood.

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(More on this later.)

How long does jet lag delay your period?

As for how exactly thatll affect your period?

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Charis Chambers is a board-certified OB/GYN also known as The Period Doctor.

In other words, your period-regulating hormones should start to adjust in line with your sleep.

Keep in Mind

This throw in of period delay is not really cause for concern.

Chambers advice for taking the pill while on vacation.

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Theres a little more wiggle room with a combination estrogen/progesterone pill.

Ask your doctor if youre unsure what kind you take.

This includes changes and delays in your menstrual cycle, especially when youre in a different time zone.

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Fortunately, period delays from jet lag are harmless and your body should acclimate within a couple days.

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