I've just come back from an attempt at my 20 week scan but because my baby was in its favourite position crouching face down, they couldn't do most of the checks. They gave it literally 5 minutes and gave up - didn't give me any opportunity to drink something sugary or move around or anything, just told me to book another appointment. So I'm booked in to try again next week but I'm just wondering, does anyone have any experience of still not being able to do all the checks on the second appointment? I'm just a bit worried that this is going to become a weekly occurrence, and given that I'd already worked myself up into a bit of a state about this one, I could really do without the stress of doing it over and over... I appreciate that this stress is entirely self-induced though!