It's not really going to be an issue for a few months yet, but I like to plan ahead. My husband and I are going to visit our families from 19 weeks to 20 weeks.
I am paying out of pocket for my ultrasounds and will request an anatomy check. It'd be nice to be able to tell everyone the gender when we see them (they live halfway/all the way across the country, so it's not exactly like we visit often.) I also don't want more ultrasounds than I need (both physically and monetarily.)
So... Am I significantly less likely to see the gender at 18 weeks than 20?