i think if you fond out then you should tell - i had on e girl say to me" no we enjoy gloating about peoples guesses" put me right off- could not give a rats what her baby is now.

we told ( both sex and name)and found it really helped so when bubs came out it was like everybody already knew him - was really what we wanted. instead of a baby shower we had a "*** coming soon party" people gave us stuff with his name etc.

really up to the indivdual but nicer to share. JMHO.