12 weeks 1 day nub theory guess???

Adrian
I'm so anxious to know, but so confused about this nub theory. Looks like a girl to me but some of the other ultrasounds I've compared to show that they ended up boys as well. Unless I was looking wrong.... So if we would take a vote, is appreciate all the help. 4 weeks till my next appt, and not sure if they'll do another ultrasound yet.