Baby Gender Prediction at 19 Weeks
At 19 weeks, you're approaching the midpoint of pregnancy and gender prediction is extremely reliable. The classic anatomy scan at 18-20 weeks is specifically designed to observe these markers.
Your Baby at 19 Weeks
- ✦Baby is about 150mm — the size of a mango
- ✦Vernix caseosa (a protective waxy coating) is forming
- ✦Baby's movements are stronger and you may be feeling kicks
Gender Prediction Methods at 19 Weeks
Nub Theory
At 19 weeks the external genitalia are fully formed. Direct observation gives ~95% accuracy — more reliable than any first-trimester nub reading.
Skull Theory
Skull theory remains a useful supplementary method at 19 weeks, with around 80-85% accuracy.
Chinese Gender Calendar
The Chinese Gender Calendar can be used alongside your ultrasound results for comparison — it's culturally popular but much less accurate.
AI Ultrasound Analysis
AI analysis at 19 weeks reaches ~93-95% accuracy by directly examining the fully-formed external genitalia and other anatomical features.
Get Your AI Gender Prediction
Upload your 19-week scan — our AI reads the well-developed gender markers for one of the most accurate predictions possible.
Upload Your 19-Week Scan →Frequently Asked Questions
Can you tell the gender of a baby at 19 weeks?
Yes — 19 weeks is a very reliable time for gender prediction. Most parents find out definitively at their 18-20 week anatomy scan.
How accurate is gender prediction at 19 weeks?
Around 93-95% from AI and direct observation. At 19 weeks, the genitalia are fully developed and clearly visible on a standard ultrasound.
What does a boy/girl look like on an ultrasound at 19 weeks?
At 19 weeks, the 'turtle sign' (the penis and scrotum forming a distinctive shape) is clearly visible in boys. Girls show the 'hamburger sign' — three parallel lines representing the labia and clitoris.