Anxious😬💗💙

I’m currently a little over 15 weeks and so anxious to know what I’m having!! I’m happy with whatever God blesses me with, just want baby bean to be healthy and praying that baby bean is healthy. I just wanted to know at what time did some of you find out what you’re having? I have a appointment coming up on December 13th and I’ll be a 16w4d at that time but my doctor isn’t telling me the gender until January 8th and I’ll be 21w2d. I seen some post about how some women got a incorrect gender between 15-16 weeks but how many of you got the correct gender in this time period? Should I ask if I can know the gender at my next appointment next week? Or just wait until January?