Have just bitten the bullet and bought some maternity bras (am 15 weeks pg) from M &S.
They're like something you'd see hanging on an 85 year-old's washing line. HUGE!
Was on here last week asking for a good bra fitting service, as I've always had pretty crap service at M &S but I tried them again and I must say the lady was excellent. I suppose it depends on who you get.
Wait till DH sees these! I won't the "I'm knackered" excuse any more, that's for sure!!