ask question about Labrador

Question
i have a 4 months yellow Labrador puppy ,before 4 months it look like pure labrador but after some time now when it is 4 months its ears are not look like a proper shaped its ears are not completely fold other body is complete looks like pure Labrador its colour and body is completely lokks like Labrador please tell me is it a pure Labrador or not

Answer
There is really no way for me to answer this question.  A photograph would help.  Sometimes ears just don't look right.  4 months is also a big time for growing so things can look out of proportion.  

Did you buy the dog from a breeder and receive a registered pedigree?  If not, it COULD be possible that he's not a purebred.