Finding out the gender.

Hannah 💓 • First time mommy ❤️ Mommy of a beautiful baby girl 9/21/17 👶🏻💝 Happily taken since 03/18/14 💏
I have an appointment on Thursday and I'll be 16w2d, my doctor said if they get their new ultrasound machine she'll give me an ultrasound, what are the chances I'll be able to find out the gender that early?