Nub theory 13 week scan please

[Kirsty123]

Hi could anyone guess for me please? Is the nub the part that I have circled that looks like a fork? Thanks x 4151841518

[Nell_]

I can't see a nub - sorry

[Kirsty123]

Ok thanks I do have This pic also not sure if it’s any better? x41526

[Nell_]

I still can't see so sorry

[ksmom]

I don't see a nub in these.