I didn't find out with DS and won't with my next babies: it's so wonderful to be able to find out yourself shortly after delivery! It helps keep you focussed in labour and such a nice surprise!

Plus, I think with gender disappointment if DS had been a girl I'd just be so thrilled to have a baby that it wouldn't matter. If I have another boy then I have blue things, if I have a girl next time I do have a couple of pink girlie things I bought for DS.