Ovulation & Pregnancy Due Date Calculator

Predict fertile days, estimate due date, and find your current pregnancy week. This tool is informational only and not a substitute for medical advice.

Irregular cycles? (optional)

If you specify a range, we’ll show a window of ovulation and fertile days.

Results

Ovulation

Fertile window

Next period (estimate)

Fertility peaks near ovulation; sperm can live up to 5 days. Always consult a healthcare professional for personalized guidance.

Option A: Calculate by last period (LMP)
or
Option B: Calculate by known due date

Results

Estimated due date

Pregnancy week

Trimester

Gestational age

Conception (estimate)

EDD is typically LMP + 280 days (40 weeks). Actual delivery can occur ~2 weeks before or after the estimate.

Ovulation & Pregnancy Due Date Calculator – SEO Content

Free Ovulation Calculator & Pregnancy Due Date Calculator Online

Wondering when you can get pregnant or when your baby will arrive? Use our free ovulation calculator and pregnancy due date calculator to predict your fertile days and estimate your baby’s due date. Whether your cycles are regular or irregular, our smart tool helps you plan ahead with confidence.


What is an Ovulation Calculator?

An ovulation calculator online predicts your most fertile days by tracking your menstrual cycle length. Typically, ovulation happens 12–16 days before your next period. Knowing your fertile window helps increase the chances of getting pregnant.


How Does a Pregnancy Due Date Calculator Work?

Our pregnancy week calculator by due date uses the first day of your last menstrual period (LMP) and your average cycle length to estimate:

  • Your conception date

  • Your current pregnancy week

  • Your baby’s estimated due date (EDD)


How to Use the Ovulation & Due Date Calculator

  1. Select the first day of your last period.

  2. Enter your cycle length (usually 28 days).

  3. Get your fertile window and due date estimate.

Try it now using our free ovulation & pregnancy calculator above.


FAQs About Ovulation & Pregnancy Calculators

Q: Can this calculator work with irregular cycles?
A: Yes. While accuracy is higher for regular cycles, it still provides a helpful prediction for irregular cycle ovulation calculators.

Q: How accurate is a pregnancy due date calculator?
A: It gives an estimated due date. Actual birth may happen within 2 weeks before or after.

Q: Is this tool a replacement for medical advice?
A: No. It’s a guideline. Always consult your doctor for personalized medical advice.

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