Nub theory revolves all-around one thing known as the genital tubercle, which varieties early in pregnancy within the lower abdomen of one's infant. At some point this tubercle, or “nub,” turns into a penis in male babies and a clitoris in female babies. MomJunction offers content for informational uses only. https://arthuraktck.blogofchange.com/28292550/little-known-facts-about-early-gender-prediction