Due date calculator

What was the first day of your latest menstruation?

Modified cycle length

Is your cycle longer or shorter than 28 days? Then adjust the amount of days.

Due date Calculator

Due date Calculator

You are pregnant and you would like to know when your due date is. The term ultrasound at the obstetrician’s or gynecologist’s offices serves to determine what the due date is. This ultrasound usually takes place between 10 an 12 weeks of pregnancy. Do you want to know before then when your (approximately) due date is? Then fill in our pregnancy due date calculator. Did you know that only 4% of women give birth on their due date?

Estimated due date calculator

Estimated due date calculator

Our due date calculator tells you the estimated date when you are going to dive birth to your baby. In most cases, childbirth occurs in weeks 37 to 42 of your pregnancy. The due date is important for you, but also for the obstetrician or gynecologist. This way they can keep a close eye on whether your baby is developing well for its term. The due date is usually 40 weeks after the first day of your last period.

How to calculate your due date

How to calculate your due date

Because it is (almost) always impossible to determine the exact moment of conception, the calculation is made from the first day of the last menstrual period. It takes 38 weeks from the time of conception to a full-term baby. Do you want to calculate your estimated due date? Then take the first day of you last menstrual period and add 40 weeks (280 days) to it. Keep in mind that this is indicative only, and it is most reliable with a regular cycle. With a longer cycle, the due date will be later, and with a shorter cycle, the dure date will be earlier.

Pregnancy due date calculator

The due date is a good indication of when you will give birth. With a cycle of 28 days, this tool is quite reliable. Nevertheless, it remains an estimate and the obstetrician or gynecologist will set the official due date. There are a few factors that can affect the outcome of this pregnancy due date calculator:

  • You were still on the pill (until 3 months ago)
  • An irregular cycle
  • A menstrual cycle is considerably longer or shorter than 28 days.