how to know if you have a private ultrasound clinic near me???

Tamara • Mommy to my 2 beautiful baby boys, Nathan Louis💙 born August 12, 2017 and Parker Joseph May 6, 2019❤️ My whole world😍
Wanting to see if I can find out gender earlier than 20 weeks?! I'm almost 16 weeks, but a bigger girl.. idk if that matters?