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

No matter the placement, your implants will drop after about three to four months. When implants are first inserted, they sit high up because your tissues are tight and gravity hasn't taken effect. Over time, natural tissue expansion occurs to allow the implants to fall into place. By this time, your breasts will have taken on a more natural contour, where the lower breasts become softer and rounder. Please wait at least four months for this to happen.This process tends to occur sooner in one breast than the other, so don't be alarmed if you find that your left drops before the right or vice versa.Stretchmarks can be minimized by leading a healthy lifestyle. This helps the skin become more resilient and supple. Once they develop, they are harder to get rid of, though. Seek the assistance of a medical aesthetician to help deal with stretch marks, but only after you've recovered fully. 

Thank you for the photos. You are still very early in your post operative course. Breast implants tend to start dropping into place after 3 to 4 weeks. They usually will get to their final position in 6 to 12 months. One will drop faster than the other, also the shape may go through changes. Please follow your Board Certified Plastic Surgeon's post op instructions. For example; we like message, but some surgeons will have you wait, or do it in a specific manner. They may also have a cream they like for stretch marks.  Please also let them know your thoughts and concerns.

At 9 weeks post breast augmentation, it is
possible that your breasts will drop a little more than they have thus far.
This is completely natural and even expected at this stage of your recovery, as
your body is getting more accustomed to the additional tissue and concentrated
weight. Also, there are indeed topical treatments and laser techniques that can
help with the darkness of your stretch marks. This is definitely something you
should discuss with your surgeon at your next follow-up visit to get the most
personalized recommendation.

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.