Anyone just told a "guess" for baby's gender? Was the guess correct

Yesterday we had our anatomy ultrasound. Baby was uncooperative so I know we'll be having another ultrasound in a month to get those measurements we couldn't get yesterday. The tech said she could only give us her best guess at gender as baby was uncooperative with that too! We didn't see boy parts, but she couldn't definitively see the three white lines for a girl either, just quick glimpses. So, my question is this, how accurate do you think the tech was? Is it possible we finally got our girl? I'm 19w4d. :)