How To Calculate Ovulation Cycle Days
This calculator gives approximate ovulation dates and fertile times for women who have regular periods.
How to calculate ovulation cycle days. The luteal phase is 14 days or 12 16 days. For example if your shortest cycle lasted 26 days your first fertile day would be the 8th day in each cycle 26 18 8 counting the day you began your period as day one. Ovulation always occurs in the 14th day of the cycle. The average cycle length is 28 days but can range anywhere from 20 to 45 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. To increase your chances of getting pregnant just tell us the first day of your last period and how long your cycle usually lasts between 20 and 45 days. How we calculate your fertile days. First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period.
Table for determining the day of ovulation if the cycle length is from 21 to 45 days. Our ovulation calculator will tell you when you re most likely to be fertile over the next six months. The standard cycle is 28 days long. Our ovulation calculator gives you the dates you re most likely to be fertile over the next several months.
After ovulation which takes place no later than the 18th day of the cycle it s impossible to get pregnant. Once you have your average cycle length you can use this number in the. Ovulation day according to the length of the cycle. Menstrual periods are different from woman to woman and month to month.
Intercourse timing calculator which can help find the best times to have intercourse when trying to get pregnant. 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. Subtract eighteen from the total number of days in that cycle to find your first fertile day meaning the first day in your cycle when pregnancy could occur. This will be the duration of the luteal phase.
Use this calculator to see when you may be ovulating to help find your most fertile days. Start with the first day of one period and count right up to the day before the first day of your next period. The days immediately after menstruation 7th to 9th days of the cycle are still relatively safe. Count the first day of bleeding or spotting as day one.
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.