Ramzi gender method??

Sarah
Has anyone read this???  
​it's saying that 97.2% of the time during a 6wk ultrasound a boy is on the right side of the placenta, and 97.5% of the time, a girl is on the left.... Has anyone followed this? If this is correct, I'll be having a boy. ( i didn't have an ultrasound until 18 weeks with my first, so I have nothing to compare with) I'll have a gender scan early July. Can't wait to see if this is correct! 
​Here is my ultrasound I had at 4 1/2 -5weeks 
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