
I remeber getting in a right state because my pups didn't souble their weight. Obviously a 6 oz pup might, but one born at a pound (my breed average is 10 to 12oz) are likely to loose a little, and then regain.
My breeder rest her soul told me to throw my scales away, as I used to panic about it, and go on how pups looked, were they filling out, well hydrated and content?
I still weigh as a guide, but not too often, unless things seem amiss. Interestingly pups all seem to average similar by 8 to 10 weeks, no matter if they were small pups early on, or heavy weights.
Also it is never possible to say that the big pup will become a b ig adult and vice versa.