TTC Calculators

  • Extended Due Date Calculator
    Not your average due date calculator! Get all the dates associated with your pregnancy! Find out the due date, first heartbeat, gender ultrasound, when you may need to consider maternity clothes (great for seasonal clothing planning) and more!

  • Ovulation Calculator
    Using our ovulation calculator can help you pinpoint when it is best to try to get pregnant by predicting your most fertile days.

  • Average Cycle Length Calculator
    Enter the first day of your last few menstrual periods to view your shortest and longest cycles and to calculate your average cycle length.

  • Beta hCG Doubling Calculator
    Calculate the doubling time of two beta hCG test results by entering the dates and times of the blood tests and the beta hCG level for each.

Not your average due date calculator! Get all the dates associated with your pregnancy! Find out the due date, first heartbeat, gender ultrasound, when you may need to consider maternity clothes (great for seasonal clothing planning) and more!

About Countdown to Pregnancy

Founded in 2008, Countdown to Pregnancy is the top source for early pregnancy symptom information! Track your cycles and record your signs & symptoms - join the friendly and supportive trying to conceive community!

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Are you trying to conceive? Do you love to write? Share your story! Write about the frustrations, the joys and the anticipation of trying to conceive. Talk about the TTC tools, the tests or the science of trying to conceive. Things you've experienced and things you've learned during your journey. If you would like to join the Countdown to Pregnancy blog writing team, send me an email at info@countdowntopregnancy.com.