How to Create an Ovulation Calendar

One of the most popular ways to figure out what day you are ovulating is done by creating an ovulation calendar. An ovulation calendar is simply a calendar where you keep track of your menstrual cycle and perform some simple calculations to figure out the range of days that you may ovulate during that cycle.

Difficulty: Easy

Instructions

1. Mark the day you first get your menstrual flow on the calendar and continue to do this for at least 6 months so you can start getting an idea of how your menstrual cycle works.

2. Subtract 18 from the total number of days in your shortest cycle. So if your shortest cycle was 26 days, take 26-18 and you get 8. This means that you could ovulate as early as day 8 of your cycle.

3. Look at your longest cycle and subtract 11 from it. If your longest cycle lasted 30 days, take 30-11 to get 19. This means that you may ovulate as late as day 19 of your cycle.

4. Mark on your calendar the next time you start your cycle. This is day 1. Count on your calendar 8 days from day 1 and circle that day. This means that during this cycle you can ovulate as early as day 8.

5. Count on your calendar 19 days from day 1 and circle this day as well. You can ovulate as late as day 19 of this cycle.

6. Realize that (in this example) you can ovulate anytime during the period of day 8 through 19 and these will be the days that you will want to concentrate your energy into getting pregnant.

Tips & Warnings

• It is impossible to know the exact day that you ovulate while using the calendar method.

Resources

• Ovulation Calendar