Discover Your Baby's Gender withNubX
Upload your 12-16 week ultrasound scan and get a gender prediction based on nub theory analysis.
How NubX Works
Our approach uses the nub theory to predict your baby's gender from a 12-16 week ultrasound scan.
Upload Your Scan
Upload your 12-week ultrasound image securely to our platform.
Select Head Location
Simply select if your baby's head is on the left or right side of the image.
Receive Immediate Gender Prediction
Get your baby's gender prediction within seconds!
Understanding Nub Theory
Nub theory is based on the angle of the genital tubercle (or "nub") visible in ultrasound scans around 12 weeks. Research suggests that the angle of the nub can indicate the baby's gender.
- Angle pointing upward (≥30°): Likely a boy
- Angle parallel or downward (<30°): Likely a girl
- Our algorithm has been trained on thousands of scans
What Parents Are Saying
Join thousands of satisfied parents who discovered their baby's gender early with NubX.
Sarah Johnson
Mother of 2
NubX predicted my baby would be a girl at 12-16 weeks, and they were right! The process was so simple, and I loved getting the detailed explanation.
Michael Chen
First-time Dad
We were so excited to find out early that we're having a boy. The prediction was accurate and confirmed at our 20-week scan. Great service!
Emma Williams
Expecting Mother
I was skeptical at first, but NubX correctly predicted my baby's gender. The process was quick and the explanation was very informative.
Frequently Asked Questions
Find answers to common questions about the nub theory and our service.
Ready to Discover Your Baby's Gender?
Join thousands of expectant parents who have used NubX for early gender predictions.