Calculation of due date
Simplify your tracking with the Ysé Naissance calculator
Pregnancy calculator
You are pregnant with:
Expected due date:
✧ Expected due date (APD) is an estimate based on the Naegele method (+280 days).
Calculate the key dates of your pregnancy
You are expecting a baby and want to know your expected due date ? The calculation of due date can be done easily thanks to our free online tool.
At Ysé Birth, we have designed a simple, reliable and caring calculator, designed to support you from the first weeks of pregnancy.
Automatic calculation of due date
Visualization of the major stages of your pregnancy
Inspired by medical recommendations
To go further in your preparation, find out about prenatal classes and meet our team:
Your frequently asked questions about calculating your due date
Is the calculation of the due date reliable?
This calculation is based on the naegele method, validated by health professionals. However, this is an estimate. The exact date may vary depending on the regularity of your menstrual cycle or the results of your first ultrasound. The Ysé Naissance calculator gives you a clear guide to plan your follow-up.
What week pregnant am I?
By entering the date of your last period, the calculator can also tell you your number of weeks pregnant current (or " gestational age ").
It's a great guide to understanding where you are on your birth journey.
Does the calculation work if my cycle is irregular?
If you have one irregular menstrual cycle, the calculated date may be less precise. In this case, the ultrasound dating remains the most reliable medical reference. The Ysé calculator still gives you a useful starting point to anticipate your appointments
The Ysé Naissance team
We are a team of birth attendants, certified and passionate doulas.
From prenatal to postnatal preparation, we each have our own specialty.
Physiological or more medicalized deliveries, high-risk pregnancies, trauma, return to work, sibling management, relief, breastfeeding, group preparation.
Our services adapt to your needs and are covered by private insurance in Naturopathy.
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