We can just use it to count the days to predict your next period.
Period cycle is the length of time in days from the start of one period to the start of the next one. Normal menstruation can be anywhere between two and seven days with three to five days being most common. The normal range of blood loss is ten to eighty milliliters with thirty-five ml being the average. The best way to predict your menstrual cycle. MyNextPeriod tracks and predicts your past and future periods. This helps your schedule and future arrangements, such as vacation, even if you need to know months in advance. Predicting ovulation. Learn how to know when you're ovulating, which days you're most fertile, how to use ovulation predictor kits, and more. What cervical mucus looks like through your cycle. When your cervical mucus looks a certain way, it's a signal that you've reached the most fertile time of Cancel. The best way to predict a menstrual cycle is by noting the days of a menstrual period on a calendar, starting with the first day of the period. Look for a pattern in menstrual cycles over a period of several months with help from an OB/GYN in this free video on women's health. Part of the Video Series: Women's Health.
http://www.periodcalculator.net/ http://www.mynextperiod.com/ http://www.babycenter.com/ovulation-chart http://www.ehow.com/video_5116613_predict-menstrual-cycle.html
how to predict a period