Hi Ellen,

There is really no "defined" weight your puppy should be. Labs can very greatly in their size while growing so a weight range is difficult to say. To good extremes, for example, are: my neighbors Lab is 5 months old and barely pushing 30 pounds...comng from large ancestry. My Lab, Hollywood, was about 50 pounds at 5 months (at a good weight).

Puppies sometimes go through fat and skinny stages as they do not grow up and out evenly for a bit. But, do make sure of the following:

1. The skin on your dogs back should NOT be sinking in between the rib bones.
2. Hip and shoulder bones should NOT be protruding.
3. No waist definition whatsoever can indicate chunkiness.

There are many more tips I can give you if you would like - please just let me know.