Okay , so im 17 weeks & i got an ultrasound done a couple of days ago , the lady who does the ultrasound said "it looks like ur gonna have a girl" "let me check again" the she zoomed it in & said she saw the lines which is a sign of a girl , she said she saw the lines about 4 times..so she put on my ultrasound "ITS A GIRL" she also said there wuss no sign of a boy. . Do you think she's correct about me having a girl?