The last puppy from the pregnancy.
people are saying that he is the smaller how can i know if my puppy he is the last and how difference between the last and the first one or middle one.

because someone told me it like 25% less
so doberman it like 60-70 so it will be like 44 lb. if it true

I think it is totally wrong since you can overweigh the 'last' dog so he weigh more than the 'first one'