At 5 days post-op you are indeed still swollen and tender, and this will resolve over time.
However, you have textured implants below the muscle (an error in choice in my opinion), and if they "work" properly in adherence to the tissues, they are already "in-position" and cannot be expected to drop. Furthermore, when reclining, they remain teardrop in appearance (NOT "anatomical" since natural breasts round out and flatten towards the armpit when reclining). Your incisions are a bit too lateral for my liking; they may show with certain types of bathing suit, and they are too close to the sensory nerve to your nipples. Again, just individual surgeon's choice, but not what I would have recommended.
Firmness is partially related to saline fill (if you have saline implants); if overfilled too much, some degree of unnatural firmness may remain. If underfilled, they will soften, but particularly with textured saline implants, leakage and deflation is more common, because of the tiny low spots and high spots associated with the texture--each breath flexes the implant surface until the weak low spot breaks down and develops a pinhole leak. If you have the cohesive gel textured implants, they are more firm by manufacture, but will feel softer as your surgical swelling goes down. Yet, they will not be as soft as smooth round style 10 moderate profile cohesive gel Natrelle implants, by comparison.
But what is done is done, and you can expect to soften, may (but will probably not) drop into a better position, and could very well end up with a perfectly adequate result that hopefully you will like! But not optimal, IMHO. Best wishes! Dr. Tholen