Ovulation Calculator

When do you ovulate? How do you know when you are ovulating? Use this free ovulation calculator (you can think of it also as a fertility calculator) to generate an ovulation calendar showing when you will ovulate next and your most fertile days for the next 7 cycles. In addition, you will find out the due date for each cycle if you are to get pregnant during your fertile days.

To use this tool, simply enter the first day of your last period and the number of days in your cycle below, and click on the Find button. First, remember to bookmark this site by pressing Control-D so you can return to this page at any time.

Ovulation Calculator First day of your last menstrual period: JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember 12345678910111213141516171819202122232425262728293031 201220132014 Cycle length: 16 day cycle 17 day cycle 18 day cycle 19 day cycle 20 day cycle 21 day cycle 22 day cycle 23 day cycle 24 day cycle 25 day cycle 26 day cycle 27 day cycle 28 day cycle 29 day cycle 30 day cycle 31 day cycle 32 day cycle 33 day cycle 34 day cycle 35 day cycle 36 day cycle 37 day cycle 38 day cycle 39 day cycle 40 day cycle 41 day cycle 42 day cycle 43 day cycle 44 day cycle 45 day cycle

排卵期計算	排卵期计算	Fruchtbare Tage Berechnen
Calculadora de Ovulacion	Calcul d'Ovulation	Giorni Fertili Calcolo
	排卵期の計算