My bitch is due her litter later this week from 1st mating, but had four mating's over five days, my question is how long past expected date have your girls gone? I know it all depends on when the eggs where ripe etc.
My bitch has gained weight as I am finding it harder to pick her up, although to me because I see her everyday I can't notice much of a difference to her belly when she is walking or stood still, she has filled up and looks slightly rounder but just not as big as I thought she would be, this is her 1st litter, her boobs are very full and pink - no sign of milk, I am worried about her as she has hardly eaten much for the past 10 days she will only eat a small handful of ( royal canin puppy) which is only about one quarter of her intake needed, she will eat carrot all day long if I let her, she has been having chicken and fish but I am concerned she is not getting what she needs. I have been making her up some puppy milk( lactol) last couple of days which she will drink if she is in the mood.

if its this week from the first mating she is due, then really want to be adding 5 days on to that, then even allow another day or two for expected date. this means she could have 2 weeks to go yet, rather than the one week you expect. they seem to suddenly get fat over night.
longest we've had was 68 days from last mating!
good luck! dead exciting this time of year... everyone's having puppies!!!