From what I have read and observed sometimes you can't really tell the size of your pup, small parents have produced bigger pups and vice versa. I think that would good nutrition and love, you will forget about weight. However I would be more concerned with health of the pup, overall genetics passed on to the babies. By the way I went to the website, what the hey is "behind" April male #4?? I see a human leg and thennnn????
Good luck with you baby search or purchase.