How To Calculate Your Cycle Length. The length of a womans menstrual cycle varies. Cycles can range anywhere from 21. To calculate menstrual cycle length you count the number of days from day one of your period CD 1 up to and including the day before the next period starts. Subtract 18 days from the shorter cycle and 11 days from the longest menstrual cycle.
Enter just the first day of your last several periods and click calculate to see your menstrual cycle chart. The average menstrual cycle is 28 days longCycles can range anywhere from 21 to 35 days in adults and from 21 to 45 days in young teens. The average menstrual cycle is 28 days long while menstrual bleeding usually lasts 3-5 days. To figure out how long your cycle is start at cycle day 1 of your last menstrual cycle and begin counting Cycle day 1234 and so forth. Therefore your fertile period will fall between days 4 and 20 of the cycle which is about 17 days. Calculate the average length Find your average cycle length with the numbers that you calculated in the months you monitored.
Add the numbers and divide by the number of months you calculated for.
There are about 6 days during each menstrual cycle when you can get pregnant. Use your LMP and cycle length in our pregnancy calculator to discover your own pregnancy calendar. There are about 6 days during each menstrual cycle when you can get pregnant. When you have that magic number you can plug it into our ovulation calculator and find your most fertile days for getting pregnant. The average menstrual cycle is 28 days long while menstrual bleeding usually lasts 3-5 days. If the shortest cycle was 22 days and your longest cycle was 31 days then 22-184 and 31-1120.