How to calculate your due date

It is very easy to calculate the approximate due date by yourself:

  • Write down the first day of your last period.
  • Your baby will come into the world approximately 40 weeks later.

Doctors also calculate in weeks of gestation. A normal pregnancy is approximately 40 weeks. The number of weeks are known as week of gestation. The mother-child health passport will indicate in which week of gestation specific examinations will take place.