This was at 16 weeks. Was told definitley girl, but I keep thinking in the back of my mind that it…

This was at 16 weeks. Was told definitley girl, but I keep thinking in the back of my mind that it might be wrong. My husband's family is all boys, so we were shocked to find out it is a girl. My son was very obvious when we found out he was a boy and looked nothing like this. Does this look like a girl ultrasound?