How did your doctor confirm the sex?

How did you get the news (wording used)? After calling to complain about an error on my doctors part, the receptionist called me back and said "It's not 100% but it looks like you're having a boy." Um, I feel like that's not accurate enough for me. I've accepted it and I'm happy either way but then part of me still has hope it's a girl. I guess what bugs me/doesn't make sense is that all they needed to do was call the ultrasound office to find that out and it's from my anatomy scan at 18 weeks! I'm 32 weeks now! And at that scan the tech wasn't even sure and didn't even write that down on the information they forwarded to my doctors office. So I've been waiting 14 weeks for nothing? Something just seems a bit odd..