20 week scan

Harley • Had my baby girl on March 9, 2017 ❤️👶🏼
So I have my 20 week scan on the 20th but it's not with my doctor it's with a specialist. The paper says I'm going for a full Ob scan and the writing says I am going for size and dates. Will they also tell me the gender and is it supposed to be with a specialist?