
I have to agree.
Unusually (and never again) I ahd two bitches preganant at the same time with just 3 days between being mated and four days difference in whelpign dates.
On was the mother of the other and was huge. At 7 weeks I was almost convinced her daughter had absorbed most of her litter and might only have one or two, as she was not very pregnant looking and the qaverage person woudl not ahve realised.
By 9 weeks she had a tummy like a Gym slip mum.
Mum produced a litter of 7 largeish pups (had alot of water too). Daughter whelped 8 average size pups (not much water), though we lost one.
My Vet confirmed preganancy by palpation at 28 days and 25 days respectively.