Is My Cycle Normal

Many girls and women wonder if their cycles and periods are “normal”. Especially if something changes.

Normal may not be as clear-cut as you would expect, and even though you may not fall in the “normal” range, what you experience may still be “normal” for your body. “Normal” is mostly based on averages and statistical analysis.

You count the length of your cycle from day 1 of your period until the day before your next period starts.

A “normal” cycle is between 21 and 35 days long. 95% of all menstruating women fall into this time range.

The average cycle length is 29 days. Most test books still describe it as 28 days, but research has shown it much closer to 29 days long.

“Normal” menstruation lasts between 2 and 7 days.

When you are younger than 25, your cycles may be longer.

Between 25 and 35 years old, most women will have cycles in the “normal” range.

After age 35 your cycles may become longer again until you experience menopause.

Fertility Friend studied 21,680 uploaded cycle charts. They found the average cycle length to be 30.38 days. The median cycle length is 29 days and the standard deviation is 5.62 days. 11.28% of the cycles were exactly 28 days long. 16% of the cycles were 35 days or more

Fertility Friend studied 19,933 uploaded charts. They found that the average period lasted 5.15 days. The median period length is 5 days and the standard deviation is 1.71 days. 66% of the cycles included one or more days of spotting at the end of the period. The median number of spotting days is 1 day.