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Taking a leap

About us

In our research that led to the 10 mental leaps of a baby, we discovered that all babies are more prone to cry, cling or to be cranky at certain times. A leap may be stressful at times, but it is positive: it gives your baby the opportunity to learn something new. Learn all about the 10 developmental leaps in The Wonder Weeks app.

How can we support you?
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Who are we?

Who are we?

The Wonder Weeks stands for helpfulness, flexibility, openness and growth. Our mission is to make parents feel confident when taking the biggest leap in their lives: having a baby! Together we make the information manageable for parents in a friendly and personal way and we do not judge.

We take a candid look at parenting, shed light on all sides and are there for all parents, in every possible form. Because every one of us experiences parenthood differently at any given time. By sharing our experiences openly, we believe that we can help each other and learn from each other.

Our history

Our history

Tanzania 1971, where the story of The Wonder Weeks all began … Frans Plooij and his wife Hetty van de Rijt observed chimpanzees with Jane Goodall in Gombe National Park (1971 – 1973). In the years that followed, they came to an important discovery, the occurrence of “regression periods” in chimpanzees, decline in independence.

During follow-up research on mother-baby interaction, such regression periods in the first 20 months of a baby’s life became abundantly clear. The leaps had been discovered!

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With our app you
have everything
in hand

appstore - The Wonder Weeks
google-play - The Wonder Weeks

Tools

Baby Leap Calculator

Baby Leap Calculator

Use our leap calculator to figure out which stage your baby is in right now, so you can better understand and support them through this period of development.
Due Date Calculator

Due Date Calculator

Can’t wait to meet your little one? This helpful tool can estimate when your little one is likely to arrive and join your family.

Gender Predictor

Gender Predictor

Discovering the gender of your baby is often an exciting moment. With our fun gender predictor you can already get an idea of whether you are carrying a boy or girl!
Fertility Calculator

Fertility Calculaltor

Want to get pregnant? with our fertility calculator you can calculate when you ovulate and have the best chance of getting pregnant!
"This app has been so helpful in understand the developmental milestones that my baby is experiencing and what I can do to help him be even more successful during the specific leaps."

Receive a notification at the start of a leap!

Thank you for signing up for our Leap Alarm. We appreciate your interest and look forward to keeping you informed!

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