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Using a Fertility Calendar to Predict Ovulation

Using a Fertility Calendar to Predict Ovulation

The calendar method predicts ovulation by looking at a woman's menstrual history. Ideally, the calendar method should be used in conjunction with other predictive strategies, like observing cervical fluids, changes in the position of the cervix, and BBT charting. Also, the calendar method can be used to determine when a woman should start using ovulation tests - products that detect her "LH Surge".

For a more comprehensive calendar method, consider creating a Fertility Chart: using several predictive methods together to pinpoint your most fertile window for conceiving.

The calendar method is designed to predict general trends based on past menstrual patterns - and is therefore limited in terms of "pinpoint accuracy". The more regular a woman's cycle, the more effective the calendar method is - and perceiving ovulation patterns begins to crystallize after a few months of maintaining records.

With the ovulation calendar method, a written record is kept using a calendar to follow the patterns of each cycle. Each cycle begins with the first day of one's menstrual period and ends with - but does not include - first day of the next (which should be recorded as the first day of the next cycle).

How Chart and Read Your Ovulation Calendar

The day menstrual flow begins is 'Day One'. Circle this date on the calendar and notate as 'Day One'. For each following month, circle Day One and continue this for for at least 7-8 months.

Continue maintaining a record of the number of days in each cycle. When bleeding starts, circle the date on your calendar.

To determine the first day you are likely to ovulate, examine your records from previous months, find the shortest cycle, and subtract 18 from the total number of days.

For example, if your shortest cycle is 28 days long, subtract 18 from 28, which leaves 10. Starting with the date you circled (Day One, the first day of your current cycle) count ahead ten days and draw an O (for 'ovulation') through that second date. This day will be the date you are most likely to become fertile.

Again, the calendar method of ovulation prediction is best used in concert with other methods discussed in the Fertility Charting section - or with ovulation predictor kits.

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Comments

ntpos po ang akng regla, sept4, nagtalik po kmi ng bf ko sept6. my posibility po ba na mbuntis aku?wlag protection na gnamt

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jj - Sep 08, 2009
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I had my menstural period on 29th August and it ended on 2nd September 2009. Wants to know when it is the appropriate time for me to get pregnant

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Anonymous - Aug 31, 2009
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my last menstruation was last july 5 that was the day that my menstruation stops. we had sex with my bf last august 26 without any protection. there is any possibility that I will get pregnant?

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Anonymous - Aug 28, 2009
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My first day of menstration was august 11. we got sex on august 20-23.. is there a posibility that i will get pregrant?

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Anonymous - Aug 24, 2009
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We had an unprotected sex on august 14, her last period was august 1. will she become pregnant using the normal calendar method?

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Anonymous - Aug 24, 2009
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My first day of menstration was august 6.. we got sex on august 12.. is there a posibility that i will get pregrant?

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Anonymous - Aug 16, 2009
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we had unprotected sex on the 3 august,her last period was on the 24 july, will she likely fall pregnant

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Anonymous - Aug 05, 2009
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i had unprotected sex with my wife on the 3rd august, her last period was on the 23 july,will she fall pregnant

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Anonymous - Aug 05, 2009
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i just want to ask...my last period is june 17 thats the first day.i have sex with my bf just ONCE that was july 18 with no protection.can i get pregnant?by using calendar method.thanks

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Anonymous - Jul 26, 2009
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i just want to ask my last period of menstruation is june 17 thats the first day and im worried if i conceived or get pregnant bec i have sex to my bf just ONCE last july 18 without any protection.i just want to know if i get pregnant.thnx

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cecil - Jul 26, 2009
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First Day of Last Period:
Cycle Length:
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Luteal Phase Length:
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Ovulation:
Due Date:
Fetal Age:

Note that you are most likely to get pregnant if you time your lovemaking to occur on the days right before - and on - your ovulation date. Keep in mind that the projected ovulation date above is simply a “best guess” estimate based on your cycle date information. The most accurate way to pinpoint your most fertile time is through the use of urine-based ovulation tests or with a fertility monitor. We have partnered with Early-Pregnancy-Tests.com, the Internet’s leading supplier of preconception products since 2001, to offer low-cost, FDA-approved pregnancy and ovulation tests – with free same-day shipping.

 

Now that you’ve calculated your ovulation date using our ovulation calculator, we have a number of other helpful tools you can use to help increase your chances of conceiving.

 

  • Create your own personalized ovulation calendar! You can even provide an email address so that you receive email alerts of your most fertile days, when you can begin testing for pregnancy, and more.
     

  • Create your own personalized fertility chart! This is a highly accurate way to pinpoint your ovulation date that relies primarily on basal temperature charting. (Visit Early-Pregnancy-Tests.com for an accurate, inexpensive basal thermometer.)
     

  • Connect with others at our online community! If you have questions about trying-to-conceive – or if you just want to vent a bit – we have a wonderful, vibrant community of people who’d just love to hear from you.

Find your most fertile time.
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