I am actually going for a third (yes, 3rd!) anatomy scan for this LO next week. The first time the tech said the baby's growth was a few days less than expected so I was going to need to repeat in a couple weeks. So I went back 2 weeks later. I thought that tech was able to get everything since she didn't tell me otherwise but when I saw my OB on Tuesday she said there was a note to repeat it AGAIN since they didn't get a clear enough shot of a heart valve. She gave me the option to go again but wasn't going to make me. For my own peace of mind to make sure everything's ok, next Friday will be session 3 and there's still no temptation to find out.
Both techs asked right at the beginning of the appointment and were very good about saying baby.