the Tech couldn't tell!

Danee
We have gone in for a couple ultrasounds. At 12 weeks the tech was 100% sure were were having a boy! 2 weeks later we looked again and she was convinced it's a girl because she can't see testicles and thinks the labia is swollen. What are your opinions?
12 weeks
The last 6 are at 14 weeks
Please help us!