pregnancy myths, ovulation, menstrual cycle, cycles, regular cycles

Q: Is a normal menstrual cycle 28 days long?

A: Normal menstrual cycle can vary from about 21 to 35 days, so it doesn't have to be an exact 28 days in order for your period to be normal. Cycles can vary from one woman to another as well as for each woman during different times in her life.

While the number of days between periods may vary, knowing whether your periods are out of the ordinary for you are what matters. If you normally get your period every 26 days, but the last three months it has arrived between 40-50 days, you should mention that to your doctor. A stark change in the way your body works may be a clue to changes taking place. Keep in mind, tracking your period is vital and helps you learn about how your body is working.

The average amount of days your period should last is typically between 2-5 days is normal, although 6-7 days may be normal for you. However, if you only get it 1-2 days or longer than 7 days, you may have a problem and should share that with your doctor.

Ovulation also does not always happen on the exact same day, even in women with regular cycles. If you don't know the exact date of ovulation, then use our ovulation calculator to the approximate first day of your last menstrual period in a 28-day cycle. If your cycles are longer or shorter than 28 days, then the day of ovulation may change, and this calculator takes that into consideration when calculating your estimated due date.

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Period Calculator
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