baby girl??

so I had an ultrasound done at 12 weeks and the tech said it looked like a boy but too early to determine. well we went back at 17weeks to determine the gender and I told the tech how last time she said it looked like a boy...

we wanted it to be a surprise so I told her I didn't want to know so I kept my head turned. she had trouble getting a clear shot but finally got it and said it's exactly what she thought. I was very disappointed that she basically told me it was a boy. well at the gender reveal I was shocked to find out we are expecting a little girl! I could not believe my eyes. I'm still in disbelief. The tech did say not to go paint the nursery or anything crazy until after my 20 week anatomy scan but I just want some one to help confirm that this is in fact a baby girl.