I have found out with all 3 of mine.......DH was reticent at first, but then felt able to bond better with a preggie belly bump as he knew the gender, so I am glad we did.

With Olivia it was from the 20 week scan, with Charlie is was from the amniocentisis results, and with this third pregnancy it was from the CVS results.

I like the idea of a surprise at birth, but I am too much of a control freak to wait!! LOL!