Girls, hello! The gestational age is 8 weeks and 4 days. We want to d…

Girls, hello! The gestational age is 8 weeks and 4 days. We want to do an ultrasound at 12.5 weeks. What can we find out? Will it be possible to determine the sex, and which ultrasound specialist would you recommend? I haven't had an ultrasound in this city. We moved long ago, but our son is 9 years old already. We haven't been to this place ?