confused .... will yolk sac be where placenta is? ramzi theory

Avril
Hi all
So I had 6 week scan (internal) a few weeks ago and it showed yolk sac to be on the left side.
But was very difficult to see a placenta. 
Now if I'm right with the ramzi theory this would mean I'm having a girl. 
However when I put my scan photo up everyone says a boy? 
So could this be because they think it's been flipped? 
Any ideas or advise please xx