I had my 12 week nt ultrasound today and everything went great! Then the technician asked if I wanted to know the gender (which I was shocked by because I have never been told this early!) he said all babies have a protrusion at this age but you can tell by the angle if it is a girl or a boy (pointing downward or flat is girl and pointing upward more than 30 degrees is boy) and said he is 85% sure we are having a boy.