I had an unscheduled early scan similar to the anatomy scan around 16.5 weeks. The ultrasound tech announced that we're having a boy but didn't show us. She seemed certain. At our official anatomy scan around 18 weeks, the little guy was shy and wouldn't show the goods. Now DH is insisting we can't tell anyone because he needs a second opinion. I think he is secretly holding out hope for a girl but also the first ultrasound tech missed a couple things that they found just a week and a half later.
I thought the chance of mistaking a boy for a girl was really low. Anyone ever experience that? We were team green last pregnancy so I'm excited to share this time and now we are essentially team green again!