Ovulation Calendar

Please correct the following errors: Please ensure that the last known menstruation has occured within 2 months. If you think that these errors are caused by a bug in our program, please mail us at bugreport@ovulation-calendar.net and provide us with the data you entered and any other information you deem necessary. We appreciate it! Our free Ovulation Calendar helps you predict your most fertile time of the month (ovulation) so that you can achieve pregnancy. Enter your menstrual cycle information (the start date of your last menstrual period, your menstrual period length and your luteal phase length). Then simply click on "View Calendar" to view your personal ovulation calendar. If you don't know the length of your menstrual cycle or your luteal phase, you can leave these at their default values (menstrual cycle: 28 days, luteal phase: 14 days). It is recommended though, that you record these, as they will help you to more accurately predict your likely ovulatory date. If you have a gender preference, simply select boy or girl from the gender field.

Ovulation Calendar Beginning of last menstrual cycle? Jan Feb Mar Apr May Jun Jul Aug Sep Oct Novr Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2008 2009 How long is your menstrual cycle? 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 days How long is your luteal phase? 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 days Trying to conceive a boy or a girl? No Preference Boy Girl

It should be noted that the ovulation calendar works best for women with a regular menstrual cycle. We are working on adding other NFP fertility indicators to our program, such as basal body temperature charting, and cervical mucus and cervical position observation so that women with an irregular menstrual cycle can also benefit from this site.

In the mean time, we have already written articles about these methods of fertility prediction: