Yep, I knew it was a boy.
I suggested his name to dh when i was 10 weeks and finished knitting a blue and green and white blanket before the 20 week scan.
I asked about the sex at the scan as I woulkd have been just as happy with a girl, but then i needed to make the switch.
As it was at the scan he grabbed his ankles in his hands and gave us a full view