Baby Gender Prediction at 10 Weeks
At 10 weeks, you're approaching the milestone where early gender clues begin to emerge. The genital tubercle is becoming more defined, and while it's still too early for reliable nub theory, AI analysis can start picking up early signals.
Your Baby at 10 Weeks
- ✦Baby is about 31mm — the size of a strawberry
- ✦All vital organs are formed and beginning to function
- ✦Baby can now make small spontaneous movements
Gender Prediction Methods at 10 Weeks
Nub Theory
At 10 weeks, the nub is beginning to form but still hasn't angled distinctively enough for reliable nub theory. Some specialists attempt early reads but accuracy is low.
Skull Theory
Still too early for skull theory at 10 weeks. The skull bones need a few more weeks to show the subtle shape differences linked to sex.
Chinese Gender Calendar
The Chinese Gender Calendar is always available and gives an instant result based on your lunar age and conception month — though reliability is debated.
AI Ultrasound Analysis
AI analysis at 10 weeks can examine early genital tubercle formation and gives roughly 65-70% accuracy — noticeably better than chance, but not yet definitive.
Get Your AI Gender Prediction
Upload your 10-week scan — our AI is starting to detect early gender markers and will give you its best read.
Upload Your 10-Week Scan →Frequently Asked Questions
Can you tell the gender of a baby at 10 weeks?
Early signs are emerging at 10 weeks, but no method is reliable yet. The nub is forming but hasn't angled — AI analysis is your best option at this stage, with ~65-70% accuracy.
How accurate is gender prediction at 10 weeks?
Around 65-70% with AI analysis. Nub theory and skull theory aren't yet applicable. The most reliable window starts at 12-13 weeks.
What does a boy/girl look like on an ultrasound at 10 weeks?
At 10 weeks, the genital tubercle is a small bud that looks similar in boys and girls. It's only at 11+ weeks that the angle begins to differentiate between the sexes.