Gender at NT

Hi everyone!

I had the nuchal scan at 13w3d and I was told 100% it’s a boy! So, I was so happy that I started buying something and I told almost everybody 💙💙 now I have a doubt.. I read a lot of people saying that at 13w it’s too early to detect gender, and a lot of people were told male or female and it wasn’t!

So I’m a little scared 😅😅 what do you think? The guy while doing my ultrasound told me 100% and she has very good reviews, but could she be wrong?

What do you think? Any Experiences?