A member asked:

According to my calculations, my period is late. i've just started to keep track of when my periods are suppose to be happening. every 28 days right?

2 doctors weighed in across 2 answers

Cycle length: Cycle length can vary; most normal ones are between 25-35 days in length. If you are just starting to monitor, follow for a few months to see if cycle is always around the same number of days.

Answered 2/27/2015

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Dr. Carrie Cannon answered

Specializes in Family Medicine

It varies: It varies among women and sometimes in one woman, depending on stress, weight, and other factors. Anywhere from 21 days to 35 days is considered normal.

Answered 2/27/2015

3.8k views

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