Where is the nub?

[Georgus]

In my scan photo I've had some people say no nub visible, some say the white triangle thing is the nub and some say it's the very thin white line above the white triangle (you need to look closely). Those who say it's the thin line say boy and those who say it's the white triangle thing say girl.

I've become a bit obsessed with the theory but recognise it's just some fun still!

Please can someone tell me where the nub is once and for all! And guess gender?

This was from my 13+2 scan.

The little triangle thing between baby's legs. Looks female to me. The theory was true for all my kids and my stepsons girlfriend (my stepson refused to believe it until the 20 week scan)

Congratulations! Its the white triangle, looks like a girl to me

That’s so interesting then - I wonder why the nub people on fb said the nub is the thin line and the triangle isn’t!

Update: nub theory can be wrong as he’s a confirmed boy following yesterdays gender scan!