I just had this discussion with my vet... My Wilma had 4 puppies back in June and two of the pups were in the 3 ounce range... one was 2 ounces and one was 5 ounces. Anyway.... the 2 ounce one was the only one to GAIN weight the first day... the others stayed basically at the same weight. They are now almost 8 weeks old and the 2 ounce one is the second largest.
There are tinies that MAY have problem latching on ... and other tinies that are just born tiny because that's all the room the had in the womb to grow.... never having a problem nursing.
Hope this helps.
