Thoughts on asking to get 20 week scan done early?

Abigail • Mommy to Miss Drew Madeline and baby #2 on the way! Due Nov. 27th!

I am 20 weeks the day after Christmas! We are really wanting to find out the gender before the holidays. Like the Friday before Christmas (Dec. 22nd) I will be 19weeks 3 days. Do you think if I ask my OB at my next appointment (Dec. 1) if we can get the scan done early that she will allow it? Or are they pretty strict on the 20 week mark? Thank you!!