How To Calculate Your Ovulation Cycle
This ovulation calculator provides an estimate of your fertile window and is not a guarantee of pregnancy or of birth control.
How to calculate your ovulation cycle. To calculate your ovulation by tracking your cervical mucus keep a calendar and track your period and the length of time between each period for 8 12 months. Ovulation occurs 10 14 days before your next period so you will get an approximate ovulation date by subtracting 14 from the number of days in your cycle eg. Use this calculator to see when you may be ovulating to help find your most fertile days. 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.
First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period. While you may already have a fair understanding of your own menstrual cycle there are women who have cycle lengths that vary. 30 days minus 14 16. How we calculate your fertile days.
Sometimes your own cycle can be as short as 23 days on cycle and 28 or 30 days the next. Talk to your doctor or nurse to plan for pregnancy and find birth control that works for you. How to calculate your next period ovulation infographic. First and foremost to attempt calculating your ovulation with any degree of accuracy especially when you re using your cycle you need to know the precise length of your cycle.
Our ovulation calculator gives you the dates you re most likely to be fertile over the next several months. This means that ovulation will occur 16 days after your period starts. The calculator and information on this website are not medical advice. When you start your period make a note.
If you have your period on january 1 ovulation will take place on january 17. Once you have at least 8 months charted subtract 18 from the number of days in your shortest period to get your first fertile day in each cycle. Cycle length is different in most women. Understanding the menstrual cycle properly.
Menstrual periods are different from woman to woman and month to month.