The Ramzi theory, or Ramzi method, is based on the notion that the position of the placenta can predict if you're carrying a boy or girl as early as week 6 of pregnancy. Dr. Saad Ramzi Ismail ...

Fraternal twins develop in their own amniotic sac with their own placenta to provide oxygen ... Community's Got Twins group have different takes: "My boy/girl twins are 6. They fight sometimes ...