How do you tell which side the placenta is on from an ultrasound?

Jessa

I am trying to use the Ramzi Method to guess the sex of my baby but am having a hard time figuring out which has side of my uterus the placenta is on. This is a transvaginal scan so right is right and left is left. Someone help! (this was from 7 weeks, 3 days)

I'm finding out 2 weeks from today anyways at (10wks) from a cell-free DNA screening but I just can't wait any longer! Lol