How To Calculate Ovulation Cycle Length
This calculator gives approximate ovulation dates and fertile times for women who have regular periods.
How to calculate ovulation cycle length. Smartphone apps such as clue glow eve and period tracker are designed to help you monitor your menstrual cycle ovulation and other key points in your cycle. If you have irregular menstrual cycles calculating your ovulation date can be more difficult but we suggest going by your shortest period date to ensure you don t miss your ovulation date. First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period. Regular periods mean having a period every 21 to 35 days fertility charting basal temperature tracking and purchased ovulation test kits can also be used to help predict a woman s fertile times.
They can be an easy and data driven means of monitoring your cycle length. Our ovulation calculator gives you the dates you re most likely to be fertile over the next several months. The basic formula to calculate it is very simple and works great if your average cycle length is 28 days. If you know when conception happened then just add 266 days or 38 weeks.
Intercourse timing calculator which can help find the best times to have intercourse when trying to get pregnant. Ovulation calculator which can help you pinpoint when it is best to try to get pregnant by predicting your most fertile days. How we calculate your fertile days. Your cycle length is the number of days between the first day of bleeding of one period and the first day of bleeding of the next.
The typical menstrual cycle is 28 days long but each woman is different. Once you have your average cycle length you can use this number in the. Because menstruation is a function of regular ovulation it begins in puberty and ends with menopause when ovulation stops. Use the calculator to see which days you are most likely to be fertile.
This can vary from 23 to 35 days and 28 days is about average. Sperm can survive in a woman s body for up to 5 days. There are about 6 days during each menstrual cycle when you can get pregnant. If you would like to use a clearblue ovulation test and are wondering when you should start testing this tool can help you.
This is called your fertile window. The first day of bleeding is counted as the beginning of each menstrual cycle cycle day 1 or cd 1 and the menstrual cycle ends on the day before the next menstrual period begins. Simply add 280 days or 40 weeks to the first day of your last period.