Did anyone else find it hard to believe the ultrasound tech when they said the gender...!?

I just can't stop worrying that they may have got it wrong!

I've had it checked three times, in two of the times the baby had its legs crossed and it was "difficult to see". I couldn't see it for myself on the screen at all. So even though I got the same answer, both times kinda felt like a guess!

The third time the tech said she can't see at all due to position.

I need to rest my mind about it but It's occupying me too much!

Im in the UK where you only get 2 free scans, so doing ANOTHER private scan or a gender dna test is expensive. Not sure how to handle the situation, anyone in the same boat?