Or just don't get gender things.
We are not finding out gender - hasn't been a problem
Unfortunately no one knows 100% until the baby comes but these doctors/ultrasound techs are pretty good at what they do and are almost always right. I would worry, most important is a healthy baby boy or girl. Gender specific things can be returned or exchanged later. I'm planking for a boy and ive gotten a few things too, so we're all in the same boat! Good luck to you!