At 5 months following fat transfer to the breasts, you are looking at a fairly stable result. Is there something that concerns you about the result? There may be elements to your particular anatomy or surgery, which may create a different set of circumstances.
By this time you are probably looking at a final result. If there has been some change in the last month I would withdraw that opinion, but usually all of the fat that will not take as a graft will be gone by now. Thanks for the question, best wishes.