I think 6-7 lbs is probably a reasonable weight. I got my Coco when she was 12 weeks old and she was barely a lbs. At almost 2 years old, now she's 4 and a half lbs. By the growth chart standards she should have been no more than 3 lbs but THANK GOD she made it to 4 lbs and now is closer to 5 lbs, but is TEEEEENNYY. But my point is the chart wasn't correct for me. 2 LBS at 8 weeks seems pretty large, not in general but for her age. But who knows how big she'll get. If you've already fallen in love with her and they are willing to refund you, then I guess it doesn't matter.