Just for fun! Ramzi theory!?

Ch

Went for an ultrasound today and for the first time saw our teeny tiny baby! I've tried looking up the ramzi theory but it confuses me a bit as you're meant to look for the placenta but right now we just have the yolk sac? So maybe you guys can help, what do you think!? Girl or boy? This was from a vaginal ultrasound by the way!