I guess I started it, because I suggested that his Mum might like to know before the first scan so she didn't feel sidelined (she lives abroad).
I think he got punch-drunk on breaking the news, because in a period of 12 hours circle of knowledge has gone from:
me, DH, doctor, DMum, DDad
to
me, DH, doctor, DMum, DDad, DDHMum, DDhSis (+family), facebook randoms and a selection of old work mates via a round robin email.
AIBU to have expected him to mention what he was doing busy busy busy busy on the pC last night?
(and breathe. and breathe).