boyorgirl.ai
Get Started โ†’

Boy or Girl?
AI Knows Before You Do ๐Ÿ’•

Upload your ultrasound scan and get an instant AI-powered gender prediction using nub theory, skull theory, and heart rate patterns.

Quick ยท Accurate ยท Private
Predict My Baby's Gender โ€” $4.99

Secure payment ยท Results in seconds ยท No subscription

4.8/5 average rating
82% confirmed accurate
Results in <30 seconds

What other parents are saying ๐Ÿ’•

S
Sarah M. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œSaid girl at 13 weeks and the 20-week scan confirmed it! So fun ๐Ÿ’•โ€

E
Emma L. ๐Ÿ‡ฌ๐Ÿ‡ง
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œWe couldn't wait and tried this. Said boy โ€” gender reveal party confirmed it!! ๐Ÿ’™โ€

J
Jessica T. ๐Ÿ‡ฆ๐Ÿ‡บ
Scanned at 12w ยท Predicted ๐Ÿ’— Girl

โ€œJust for fun before our anatomy scan. It was right! Having a little girl ๐ŸŽ€โ€

P
Priya K. ๐Ÿ‡ฎ๐Ÿ‡ณ
Scanned at 15w ยท Predicted ๐Ÿ’™ Boy

โ€œMy husband didn't believe AI could tell. It said boy. He was wrong to doubt it ๐Ÿ˜‚โ€

A
Amy W. ๐Ÿ‡จ๐Ÿ‡ฆ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œPredicted girl and we just found out it's correct! Best $5 I ever spentโ€

R
Rachel B. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œThe nub theory breakdown was super detailed. Said boy โ€” anatomy scan says boy! ๐Ÿ™Œโ€

M
Mei Lin C. ๐Ÿ‡ธ๐Ÿ‡ฌ
Scanned at 12w ยท Predicted ๐Ÿ’— Girl

โ€œTried it the minute I got my 12-week scan. Girl prediction was spot on!โ€

L
Laura D. ๐Ÿ‡ฎ๐Ÿ‡ช
Scanned at 16w ยท Predicted ๐Ÿ’™ Boy

โ€œWay cheaper than those gender prediction sites that charge $15+. And it was right!โ€

S
Sofia R. ๐Ÿ‡ช๐Ÿ‡ธ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œSent it to my whole family group chat ๐Ÿ˜‚ Everyone's so excited. It's a girl!!โ€

H
Hannah J. ๐Ÿ‡ณ๐Ÿ‡ฟ
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œThe confidence was 78% boy. Anatomy scan at 20w = boy. AI is wild ๐Ÿคฏโ€

O
Olivia P. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 15w ยท Predicted ๐Ÿ’— Girl

โ€œI was so impatient waiting for the anatomy scan. This made the wait bearable! Correct too!โ€

A
Aisha N. ๐Ÿ‡ฆ๐Ÿ‡ช
Scanned at 13w ยท Predicted ๐Ÿ’™ Boy

โ€œThird baby โ€” first two were girls. AI said boy this time. IT WAS RIGHT ๐ŸŽ‰๐ŸŽ‰โ€

S
Sarah M. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œSaid girl at 13 weeks and the 20-week scan confirmed it! So fun ๐Ÿ’•โ€

E
Emma L. ๐Ÿ‡ฌ๐Ÿ‡ง
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œWe couldn't wait and tried this. Said boy โ€” gender reveal party confirmed it!! ๐Ÿ’™โ€

J
Jessica T. ๐Ÿ‡ฆ๐Ÿ‡บ
Scanned at 12w ยท Predicted ๐Ÿ’— Girl

โ€œJust for fun before our anatomy scan. It was right! Having a little girl ๐ŸŽ€โ€

P
Priya K. ๐Ÿ‡ฎ๐Ÿ‡ณ
Scanned at 15w ยท Predicted ๐Ÿ’™ Boy

โ€œMy husband didn't believe AI could tell. It said boy. He was wrong to doubt it ๐Ÿ˜‚โ€

A
Amy W. ๐Ÿ‡จ๐Ÿ‡ฆ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œPredicted girl and we just found out it's correct! Best $5 I ever spentโ€

R
Rachel B. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œThe nub theory breakdown was super detailed. Said boy โ€” anatomy scan says boy! ๐Ÿ™Œโ€

M
Mei Lin C. ๐Ÿ‡ธ๐Ÿ‡ฌ
Scanned at 12w ยท Predicted ๐Ÿ’— Girl

โ€œTried it the minute I got my 12-week scan. Girl prediction was spot on!โ€

L
Laura D. ๐Ÿ‡ฎ๐Ÿ‡ช
Scanned at 16w ยท Predicted ๐Ÿ’™ Boy

โ€œWay cheaper than those gender prediction sites that charge $15+. And it was right!โ€

S
Sofia R. ๐Ÿ‡ช๐Ÿ‡ธ
Scanned at 13w ยท Predicted ๐Ÿ’— Girl

โ€œSent it to my whole family group chat ๐Ÿ˜‚ Everyone's so excited. It's a girl!!โ€

H
Hannah J. ๐Ÿ‡ณ๐Ÿ‡ฟ
Scanned at 14w ยท Predicted ๐Ÿ’™ Boy

โ€œThe confidence was 78% boy. Anatomy scan at 20w = boy. AI is wild ๐Ÿคฏโ€

O
Olivia P. ๐Ÿ‡บ๐Ÿ‡ธ
Scanned at 15w ยท Predicted ๐Ÿ’— Girl

โ€œI was so impatient waiting for the anatomy scan. This made the wait bearable! Correct too!โ€

A
Aisha N. ๐Ÿ‡ฆ๐Ÿ‡ช
Scanned at 13w ยท Predicted ๐Ÿ’™ Boy

โ€œThird baby โ€” first two were girls. AI said boy this time. IT WAS RIGHT ๐ŸŽ‰๐ŸŽ‰โ€

How it works

๐Ÿ“ธ

1. Upload your scan

Take a photo of your 12โ€“16 week ultrasound scan or upload the digital image.

๐Ÿค–

2. AI analyses it

Our model examines the nub angle, skull shape, and any visible heart rate data.

๐Ÿ’•

3. Get your prediction

Receive an instant prediction with confidence level and detailed breakdown.

How accurate is it?

Our AI combines three proven gender prediction methods. Here's what the science says:

93โ€“97%

Nub Theory

Analyses the genital tubercle angle at 12โ€“14 weeks. The most reliable visual method with a clear scan.

70โ€“75%

Skull Theory

Compares skull shape & brow ridge differences between boys and girls. Less validated but adds signal.

~50%

Heart Rate

The old wives' tale that girls have faster heartbeats. Mostly a myth, but we check it anyway. ๐Ÿคท

Combined AI accuracy: ~70โ€“80%
Our AI analyses your photo โ€” not a trained sonographer in person โ€” so results depend on image clarity and gestational age. Best results at 12โ€“16 weeks with a clear profile shot.

Privacy first

Your ultrasound is analysed in real-time and immediately discarded. Nothing is stored.

Instant results

No waiting 24 hours for a human to review. AI delivers your prediction in under 30 seconds.

Multiple theories

Combines nub theory, skull theory, and heart rate analysis for a comprehensive prediction.

Simple pricing

One scan. One price. No subscriptions.

Other sites charge $10โ€“25
$4.99

per ultrasound scan

  • โœ“ AI gender prediction with confidence %
  • โœ“ Nub, skull & heart rate analysis
  • โœ“ Results in under 30 seconds
  • โœ“ Shareable result card
  • โœ“ No account required
Get Started ๐Ÿผ
๐Ÿ”ฎ Coming Soon

See what your baby will look like ๐Ÿ‘ถ

Upload photos of mum & dad. Our AI generates what your baby could look like โ€” from newborn to 2 years old.

Frequently Asked Questions ๐Ÿค”

Is this real medical advice?+

No โ€” this is for entertainment purposes only. Our AI gives a fun early prediction, but only your doctor can officially confirm your baby's gender at your 18โ€“20 week anatomy scan.

What weeks work best for a prediction?+

12โ€“16 weeks is the sweet spot. The nub is most visible in this window. Earlier than 12 weeks and the genital tubercle hasn't differentiated enough; later than 16 weeks and a regular ultrasound can tell you directly.

How accurate is it really?+

Combined accuracy is around 70โ€“80%, depending on image quality and gestational age. Nub theory alone can be 93โ€“97% accurate with a clear 13-14 week scan. We're transparent about this because we want you to have fun, not make nursery decisions based solely on our prediction!

What if the AI can't read my scan?+

If your image is blurry, taken too early, or the baby is in the wrong position, the AI may give a lower confidence score. For any issues, contact [email protected] with your payment confirmation and we'll help you out.

Is my ultrasound image stored?+

No. Your image is analysed in real-time and immediately discarded. We never store, save, or share your ultrasound images. Your privacy is our priority.

Learn More

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๐Ÿผ Predict My Baby's Gender โ€” $4.99