Anatomy scan disappointed

Emma
I had My anatomy scan today that I waited so long for I'm very disappointed as I barely got a 2 min glimpse of the baby at the end of the scan and it wasn't even clear. I was really looking forward to confirm the gender as well and the tech didn't even mention anything about the gender I had to ask her then she said oh and look for 2 second and said I think it's a boy but not 100% sure though how am I supposed to believe she was right or wrong ?! I'm having doubts now and I want to do another scan to confirm the gender as she didn't even show me a part of the baby that will confirm if it's a boy indeed or girl?!