Hi everyone I just bought my yprkie about a week ago and he's the sweetest little guy ever!! His name is Boo. However I think my little Boo may be mixed with something else(regardless I will still love him either way) he is 4.5lbs and is 11 weeks is this the norm?His hair is the typical yorkie hair, but his snout seems a little longer than the usual Yorkie.

this is Boo