So I am 34weeks and didn't know the gender of my baby and iv been looking online at silly myths etc and came across the nub theory, im now convinced by like 98% that my baby is going to be a boy and feel like I've wrecked the surprise. It says it's 70/85% accurate, just wondering is their any truth in it or do any of you that's used this theory found it to be wrong/misleading? X