I went to my ultrasound appointment yesterday I was 23 wks 6 days my technician couldn't find out the gender around 19 wks because The baby legs were close so she tried to figure out this time around and said the same thing the baby legs are closed and because she doesn't see any boy parts visible that it's 80% a girl she also suggested asking my obgyn for a blood test. Should I believe I'm having a baby girl or should I get a second opinion?