Anyone have NIPT gender results be wrong?

I'm going for my anatomy scan today. I found out through SneakPeek at home test at 8 weeks and then the NIPT test at almost 12 weeks that I'm having my 3rd baby boy. But for some reason I'm freaking out that the anatomy scan is going to show a girl. I desperately wanted a girl and suffered with some gender disappointment after my bloodwork results. But now that I'm used to the idea of having a 3rd boy I just dont want to go through the emotional rollercoaster of finding out otherwise! But I came across a few things a while back that said if you've had boys before it's possible for your NIPT to be wrong (my boys are 4 years and 21 months). Was anyone's NIPT test wrong for gender? In the end I know I'll be happy and blessed either way but I'm so nervous this time around for some reason!