It really is hard to predict...I think only a breeder who has done this for years and really knows her lines can know. Rily was charting around 6 lbs (2.13 @ 12 weeks) but he blew the chart away and @ 14 months he is 9.5. Saydee, however, was larger than Rily @ 12 weeks and was charting to be around 8 pounds....she seems to have stopped @ 6.5 since she hasn't grown since the end on January. My new one, Minnie, is charting to be 2 pounds, but her breeder says she could get to 3 or 3.5 pounds. I love the fact that I have a large, medium and small....I love them all!
I agree with the poster that said you won't know until they are adults. My friend has a little girl that seemed to stop growing at 6 months and 5 pounds, but now at 17 months she grew again and is 8 pounds...you never know.
