Do you know if it was still in the normal range? Did they indicate that it should be a concern. My first baby's belly was at the top end of the normal range at the 20 week scan but there was nothing wrong. He has always had a really pot belly (like his mummy!) So was just his body shape. His legs were right down the bottom end of the normal range and he still has really short legs but again theres no problem.
My 20 week scan showed a large abdominal circumference compared with other measurements, but the sonographer wasn't bothered. I mentioned it to my midwife and she said it wasn't a problem and could have been that the baby needed a wee!
Same. At 20 weeks the baby had a big abdominal reading. Then I booked myself in for a GD test as they wanted to rule it out. Then they said I didn't have it (GD) but that i needed another test as it doesn't develop till after. 24 weeks! So it can't have been my GD causing a big baby. I'm going to have a 30 week scan to check and then decide if I need a GD test
But most people seem to think it's no big deal just one of those things - big tummy / baby needed a wee etc