How accurate are the guessing from a nurse?

Arianna

Hello all!!!

Last week i went for a N.T scan i was 13 weeks and 4 days.

We get to see the baby and i wasn't moving until the nurse pressed in and it jumped! Lol, it made me cry, it was so emotional... anyways, my husband asked of it was possible to know the gender. She asked me and i said ok and her words were "if i can guess, i will say it's a boy"... and we saw something sticking out between the legs!! Lol.. my question is, how true can that be?? My husband is telling anyone we are having a boy!!! I wanted a girl and im still on deny it until week 18 lol