Can the Ramzi method reveal whether you'll have a boy or a girl ? Find out more about this unusual sex determination theory. Posterior Placenta : A posterior placenta attaches to the back of the uterus near the spine. Learn what this means for pregnancy and delivery. The study was a prospective cross-sectional design and was carried out at the Maternity and Children's Hospital in Najran, Saudi Arabia on 142 pregnant women . The objective of the study was to establish, utilising ultrasound scan , whether there is any link between the site of the placenta and the … The theory claims that the location of the placenta , or trophoblast, can define fetal gender as early as six weeks via ultrasound. If the placenta is developing on the left side, the sex is female.

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