Thank you! I wondered if I'd lost my ability to see photos!Cute pup, Robyn! Took a peek before the pics were removed. As for him being "big," if he weighs 3.7 at 18 weeks, and gains another 1/2 lb. or so, by 24/28 weeks, and another 1 lb. after that until adulthood, that would make him about 5.5 lbs. So my guess would be no more than 6.5 lbs. full grown? Probably more like 5.5/6 lbs. But for what it's worth, he looked a bit bigger than 3.7 lbs. in the pics. But the pic was taken outside, and outside pics always make them look bigger. So who knows. Even if he ends up 6 lbs., that is still quite small!