Weight is not limited to simply the parents' size...there can be throwbacks. Doubling her weight at 12 weeks would give you a close guess. There is usually a growth spurt between 6 - 8 months.
As far as being too big for your chi....at one time the three of mine varied in weight 12 pounds, 9 pounds, and 3 pounds. There was never a problem with the "little" guy.
__________________ Deb, Reese, Reggie, Frazier, Libby, Sidney, & Bodie |