Early gender scan

So I got an early gender reveal ultrasound done today at a reputable and very popular

scan place with amazing reviews (14w 2d but I’m measuring almost a week ahead) apparently they’ve had a 100% success rate, and not had a single misinterpretation. The ultrasound technician said it was very obvious that it’s a girl and she showed that the clitoris is prominent with no male genitalia, but I’ve heard that people have been told they’re having a girl when they’re having a boy. They also did 3D and still no boy parts but now I’m confused as I’m hearing mixed things about accuracy. The lady said she can happy guarantee it’s a girl given hoe clear the scan was and she said it was one of the easiest scans to determine sex for.