9 Weeks Post Op, Will my Breast Implants Drop More? (photo)

Your final results following a breast augmentation are mostly present; including "dropping of the implant", when implants are below the muscle, within the first 3 months for most and certainly by a year. Breast implants initially after surgery when placed in a submuscular position often give superior fullness that corrects itself with time, the "fluff and drop" phenomena. In reality the pectoralis major muscle takes a while to adjust its size to accommodate the implant as well as occasional muscle spasm which keeps the implant projection higher than its final resting shape. Additional variables include:laxity of skin, size difference during prior pregnancies, position of implant,size of muscle, and size of implant.As the muscle relaxes the projection of the implant often increases and the breast shape improves. Massage and use of a superior placed elastic strap can often make this process go faster.

No need to be concerned at this point.  Your implants will continue to drop over the next few months.  You should talk to your PS, but I would recommend breast massage exercises and possibly a breast band (bandeau). As others have stated there is no known treatment for the stretch marks.  Good luck.