Nub theory

Angela
So this is my ultrasound form yesterday 11 weeks 3 days . The nub theory is basically if the angle of the nub is greater than 30 degrees from the spine that it's a boy if less than 30 degrees or closer to parallel it's a girl. what do you guys think girl or boy?? I already have two boys I'm really praying this one is a girl I'm so nervous...