The earliest time we can assess the babys sex is at 12 weeks gestation/pregnancy: We can tell the sex of the baby at the 12 week scan by assessing the direction of the nub. This is something that can be identified on babies at this stage and if it points vertically then it is likely to be a boy.
Whats the earliest you can see babys gender?
Most doctors schedule an ultrasound at around 18 to 21 weeks, but the sex may be determined by ultrasound as early as 14 weeks . Its not always 100 percent accurate, though. Your baby might be in an awkward position, which makes it difficult to clearly see the genitals.
What are they looking for at 12 week ultrasound?
The 12-14 week ultrasound scan has four main purposes: determining the due date; detecting multiple pregnancies; checking basic anatomy; and performing a nuchal translucency test, which is a screening test for Down Syndrome and some rarer conditions.