When will I drop and fluff?

Over time the muscle will stretch allowing the implant to drop and increase anterior projection. After about 6 mos. the final appearance will be achieved. If you are still not satisfied, then you might consider a larger implant. Good luck!

You are correct. The implant is pressed flat and high by the chest muscle making them appear smaller."Drop and fluff" refers to the fact that as the skin stretches and the muscles relax, the implants move down and out slowly – about 1 percent a day. It’ll be about six weeks before they even begin to settle down, but they’ll be close to 80 percent settled at three months. Watching their progress is like watching your hair grow. You don’t see a difference in your hair growth daily, but all of a sudden you need a haircut. 
Be patient after surgery. Give yourself a few months before making a judgment about your surgical results. You won't know the outcome until then.Dr. Ted Eisenberg, Board Certified Plastic Surgeon and Author

Two things happen and seem paradoxical. As as the swelling goes down there will be some shrinkage but at the same time as the muscle relaxes your breast projection grows. In general the breast shape and size proportionality improves..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.

Thank you for your question.. Drop and fluff refers to post-operative period in which the breasts begin to descend and fills out the lower half of the breast. It may take several months for this to happen and can be encouraged with breast massage and compression. It may appear that the breast enlarges as the lower aspect of the breast fills out (at the expense of the upper portion of the breast)

The term “Drop and Fluff” appear to reference changes that
occur in the breast following surgery.In the post-operative period, patients have soft tissue swelling and
muscle spasm.These phenomena tend to
displace the implants in a superior direction.When the swelling and spasm resolve, the implants “drop” into a normal
position. For
this reason, we recommend that patients not make decisions regarding breast
size until swelling and spasm have resolved.

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.