Expect the breast to continue to drop if it has only been six weeks. Following your surgeon's advice regarding massage and exercises is your best bet. When the implant is riding high, it just looks different, and some think they look larger, some smaller. Usually they are both--larger at the top, smaller at the bottom
Allow at least 3 months for the implants to settle. Stay in contact with your surgeon.
Best wishes, and thanks for your question.