Need help!! What is the gender???

So I went to a 3D ultrasound place 2 weeks ago when I was 17 week so I could find out the gender of my baby. We didn’t want to know there what it was because we were going to have dinner that night and reveal it to every together. They told us it was a boy. Well today when I went I. For my 20 anatomy scan the ultrasound technician told us it was a girl. So know I’m so confused I don’t know what I’m having 😩😩😩

So here is the ultrasound from the 3D place.

And here the one today from the hospital 20week scans

Has this happen to anymore before? And can someone please help tell what the F I’m having? I got baby shower I would like to be planner right now. It’s ether Winnie the Pooh or little mermaid s