It is not too soon to worry about hip dysplasia. Best thing to do would be a physical exam and to take some good quality radiographs (sedation is probably necessary) of the hips to evaluate for hip dysplasia or some other developmental orthopedic problem. If hip dysplasia is present then making the diagnosis early may give you more options for treatment on a young dog. We can talk with you further today at 813 885 4477. Just call and ask to speak with a doctor. Thanks for the question!