Hi, yeah mine was at macclesfield hospital too! Small world hey?
She was a nice sonographer but she said they have 20 mins to do the 20 week scan which is mainly to do the checks for any abnormalities, which she was very thorough with then at the end she tried to get a potty shot but my baby was sat on its bottom with legs crossed..she did ask me to wiggle and my baby was just being stubborn and not shifting..lol, best thing is to have a bit of fizzy pop before you go in and that will make the baby be a bit more active...good luck xxx