I have so many conflicting pics! This first one, it’s a straight nub parallel with the spine which makes me think girl

But this next one I screenshot from the video, have some at mind which make me think boy - but the bottom line is still straight (doesn’t flick up) so it’s still making me think girl but wondering what the stacking is on top?!

And this is the photo she printed out for me as a keepsake

They all look so different!! Any nub theory experts?? Scan was at 12 weeks, 6 days..