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Should I worry if I start my period a week early?

Updated July 19, 2017

Many factors effect your menstrual cycle. Stress, diet change and age are just a few factors that can offset your cycle. A regular menstrual cycle can be anywhere from 25 to 35 days. Starting your period a week earlier than you were expecting is typically not a cause for concern.

Cycle times vary

Many factors effect your menstrual cycle. Stress, diet change and age are just a few factors that can offset your cycle. A regular menstrual cycle can be anywhere from 25 to 35 days. Starting your period a week earlier than you were expecting is typically not a cause for concern.

Sign of trouble

If cycles are consistently irregular, accompanied by pelvic pain or the passing of large clots, you should discuss this with your doctor. Rarely, a disorder such as Polycystic Ovary Syndrome or Pelvic Inflammatory Disease could be the cause of your early period. Be sure to discuss any medications you are taking with your doctor.

Bottom line

Menstruation is not an exact science. Your body changes each year, just as your life can change daily. The length of your cycle can vary from month to month. Having an early period every once in a while is not a reason to worry. If it doesn't return to normal the following month, consult your doctor.

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About the Author

Shannon Morgan is a freelance writer from Missouri who has been writing professionally since 2007. She currently writes web content for Demand Studios and Textbroker. Prior to becoming a full-time freelance writer, she worked as a senior medical review assistant for a major health insurance company. She attended Jefferson College in Missouri.