Are your due dates being calculated by your last period or by your adjusted scan due date?
My EDD using my period is 27th June, but all the way along the midwives have used the adjusted scan date of last Tues (21st) as my EDD, which means I'm 40+4. Even then I've been measuring two weeks ahead, so am feeling doubly frustrated I haven't had babe yet. But maybe this has all been rubbish and we should have been using the 27th as my EDD. I know it's still an estimate, but just wondered which date your EDDs are being calculated against?