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Free Online Fertility Calculator

Malpani Fertility Clinic: Offers Ovulation Calculator & Free Online Fertility Calculator.

Use our free online fertility calculator to determine your peak fertility dates for the coming year. This can be especially helpful for couples who need to time for "baby-making sex".

This calculator is based on the fact that

  1. ovulation occurs 14 days before the next menstrual period is due; and that
  2. fertility peaks on the day of ovulation, and for 4 days prior to this.

Just enter :

  1. The first day of your last menstrual period ( the day the bleeding starts)
  2. The length of your menstrual cycle ( number of days from the first day of your period to the first day of the next period)
The Dr Malpani Fertility Calculator
First Day
of Last Period
/ /
Cycle Days

Interested in learning more ? You can find out more about how your body works and how you can use the signals it gives you by tracking your ovulation .

If you live in India, we can also send you an SMS on your mobile free of cost to remind you of your fertile days.

Please register at if you'd like to make use of this great new service , which is being offered for the first time in the world !

Need more information ? Get a free second opinion from Dr Malpani by filling in the Free Second Opinion form