Pregnancy Due Date Calculator

Fill in the 1st day of your Last Menstrual Period (LMP) date

What this calculator does

Our Pregnancy Due Date Calculator calculates all important pregnancy dates:

  • Estimate due date of delivery
  • Conception Date
  • Date of first heart beat
  • Date of first move
  • Date of first reliable pregnancy test
  • Date of first ultrasound test
  • End of second trimester
  • End of third trimester

It also will calculate the zodiac sign of your baby

How to calculate estimated due date of delivery

The method most frequently used is the one that assumes the conception occurring 14 days after the start of the last menstrual period.

The approximate date may be obtained by taking the date when your last period began, adding 7 days, then counting back 3 months and add a whole year.

When to do first ultrasound test

First ultrasound typically is done between 18th and 20th weeks.

Please remember that your due date is only an estimate. On average only 5% of births take place exactly on the estimated due date. Most are born within a week either side of the estimated due date.
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