Anyone had a wrong nub guess? How likely is it to be wrong ? I guess it can depend on scan quality, cord/leg, positioning.

For a girl nub it can be possible to rise and become a boy nub at this gestation it’s more accurate from 12+4 - 12+6 weeks xx

In my opinion, nub theory is quite accurate! It’s been correct for both my baby’s but it does depend on if there is a full and clear nub shot within the correct gestation. Some sonographers also use it but not many will give you an opinion when it comes to nub theory

They all guessed boy and I had a girl! X

how many weeks were u when they guessed

I was 13+6 x

sometimes at that later gestation it’s a little harder to see because it’s not so much a nub anymore, it’s more developed into actual genitals x

I feel gutted as I’d love a girl after two boys. What was your 12 week girl scan like? X

can we see your 12 week nub scan? X x

where is your nub on this picture? I find it hard to see! Xx

what did your 12 week scan photo look like x c

Confirmed at 22 weeks x

I think they mistook the “top” nub as boy when it was actually the cord