Find out when you are most likely to be ovulating here.
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Pick first day of last menstrual period
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Average Length of Cycles (Days)
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Average Luteal Phase Length (Days)
9 10 11 12 13 14 15 16

* If unsure leave Luteal phase as the average which is 14 days

Estimated Ovulation Start:

Estimated Strongest Ovulation Day:

Estimated Ovulation End:

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Luteal Phase
The Luteal Phase is the period of time beginning with the day after ovulation and running through the remainder of your menstrual cycle (ends the day before your next period). If you are unsure then do not worry as the widget will automaticaly take the average, which is 14 days for most women.
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Ovulation Predictor

To use this ovulation predictor, simply enter the first day of your last period and the number of days in your cycle below, and click the Calculate ovulation button.
Month:	January February March April May June July August September October November December	Day:	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	Year:	2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020