I haven't posted here in a while, so I thought I'd put up a little update. Duma is almost 6 months old (in 4 days). She's grown a lot, but still isn't too big. I don't think she's going to get all that big. We see lots of labs at the dog park that are younger but bigger than her.
She's bigger now, but is definitely still a puppy. She doesn't sleep in her crate anymore, I leave her out in my bedroom with the door closed.