Amanda provides: "Gender types 16 months onwards - the nub may have gone in if it's a Woman and out if it's a boy. On ultrasound, the sonographer would look for the ‘potty shot’ in order to see genitals clearly. This feature will be of gender prediction ninety nine.9% exact." https://13weekgenderscan55442.blog-a-story.com/7669215/not-known-facts-about-ramzi-nub-theory