I didn't find out the sex as love a surprise but I also like the guessing, old wives tales etc. I have been looking at my notes from the scan I had with my first (a boy) and compared them with this 20 WK scan. This baby measures slightly smaller even though this scan was at 20 wks exactly and sons was done at 19 wks 5 days. My initial thought was it may be a girl as they may be smaller but I also think babies may go through growth spurts at different times so not sure. Just for fun what are your thoughts please?