Chance of gender changing?

Hello everyone!! I got an u/s at 13wks3days (although measuring at 14wks3days) and the tech said boy. It appears it’s pretty obvious too 😂 I’m just wondering if anyone had a similar pic at this point and it turned out to be a girl? I know nothing is for sure until the baby gets here...and there’s a better, more solid idea at my 20 wk appt-but curiosity is killing me 🤔 I’m thrilled that we’re expecting a boy-I just don’t want to get set on boy if there’s a high chance it could change ☺️ Thank you!