There is no absolute predictor of fertility
But there's a bunch of things we can test.
Grip helps you exclude the most common reasons why women struggle to conceive, just like fertility clinics would.
Our customers love us
It was a pretty big shock when I first got my results, and I’m glad that it was possible to discuss them over the phone pretty much instantly. I’d highly recommend other young women to do the Grip test.
Psychologist, Utrecht, NL
Lotte is on hormonal IUD. Read more here.
The Grip test has calmed my worries, and given me a better idea of whether I am okay to wait a bit longer, or if I should start trying to get pregnant as soon as possible.
School Teacher, Oldenzaal, NL
Debbie is on birth control pills. Read more here.
I strongly believe that you can live your best life best when you know more about yourself. I feel so much more at ease now I don’t have to go through life thinking ‘what if’.
Program Manager, Amsterdam, NL
Leonie is on hormonal IUD. Read more here.
Drs. Noor Teulings
co-founder, Chief Science Officer
Drs. Noor Teulings received her Medicine Doctoral from Utrecht University and is completing her Ph.D. at the University of Cambridge (2020).
Professor Dr. Frank Broekmans
Dr. Frank Broekmans is a gynecologist and Professor in Reproductive Endocrinology and Surgery at the University Medical Center Utrecht, since October 2010.
Dr. Simone Oudshoorn
Dr. Simone Oudshoorn is a gynecologist at Elisabeth-TweeSteden Ziekenhuis (ETZ). She received her Medicine Doctoral from Utrecht University
How Grip works
You can take the test from the comfort of your home
Get the kit
Answer a few questions, we'll customize your test based on your birth control.
So yes, you can take the test if you're on birth control.
Collect your blood
Prick your finger, collect about 10 drops (0.5ml) of blood, and pop your sample in the mail. That's it!
Our lab, the same ones fertility clinics use, analyses your blood sample.
Our lab is ISO15189 certified, the highest possible medical certification in Europe.
Your plan of action
Your results are just the start. Most fertility related issues are easily treatable, as long as you have time. Our doctors will make a (free) plan with you, and you can ask all your questions in our closed chat group.
We are just like you. We wanted to take control of our fertility - with data.
How we protect your data.
We understand how sensitive your information is, and we work very hard to keep everything as safe as possible. The lab uploads your results to a special medical cloud, and the only way that we can see your report is through 2-factor authentication. Only medical professionals have access to your report.
We are GDPR compliant, which means that we won't store any of your data unless you give us explicit permission to do that. Most women want us to store their information so that if you test again next year, we can easily compare your results.
We ask everyone to opt in to giving us an anonymised version of your results for fertility research, but if you don't want to participate, you, of course, don't have to.
Still have questions? Contact us at