Nub theory wrong at 13 weeks??

[Strawb66]

Hello! Just after some opinions! I have posted my scan pics to a nub theory group on Facebook and the overwhelming majority of guesses have been boy, some even saying “definite boy”.I already have two girls and would be thrilled either way, I just cant get my head round this finally being a little boy! Can nub theory be wrong at 13 weeks, or is it pretty clear cut if you know what you’re looking for? People on Facebook seem to say that one of the scan images shows clear boy genitals, which I thought was a leg!
Has anyone ever experienced thinking they were having a boy due to nub theory but it was a girl?

It's a theory so yes of course it can be wrong. Get a private scan in three weeks time

Yes it’s a boy. The last picture shows a tiny penis poking up from the nub.

The fourth photo looks very much like a boy! Not so sure about the earlier three. Fingers crossed for you OP! x

Definitely looks boy, but of course nub theory is never 100% correct. You can see it’s stacked on last image though which is usually a boy

I was told girl, I posted on Facebook page and also paid someone online too. I sent a few different pictures angles three different angles that were showing nub. I was also told my baby was looking “girl” according to skull theory via the midwife. Obviously I went for a confirmation scan a few weeks later. Pleasantly surprised to find out he was a boy!
I know of two other friends irl who have been told girls when they are boys. Maybe they were late developers.
When I had dd I was told girl which was obviously correct. It’s still fun to have a guess though.