12 weeks and 3 days ultrasound and we peaked at the sex!

So my ultrasound tech and I were looking at the gender of the baby... I work with her and I told her I did sneak peek but how I wasn’t sure if I believe it (results said boy)... so she entertained me and we looked. She was telling me she won’t ever guess this early because another coworker once looked this early and had a nub but ended up being a girl.... my baby definitely had a nub or more! Anyone else peak this early and see anything? Ever see a nub and it be a girl?