12 days post BA, 38A to 600cc any progress? Will they drop and fluff? (photos)

Dear karina1030,
you are still in early stage of recovery. You can expect your breasts to change their shape during the next months. You will be able to see the final result of the surgery only after 4-6 months. 
If you have any concerns, you should consult with your plastic surgeon. 
Daniel Barrett, MD, MHA, MS 

Certified, American Board of Plastic Surgery 

Member, Am. Society of Plastic Surgery

Hello and thank you for your question.  The
best advice you can receive is from an in-person consultation.  It is very normal to be swollen and have high riding implants in the immediate post-operative period.  I recommend that you maintain close follow-up with your surgeon.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

Hello,At 12 days post op your breast tissues, muscle and skin will be tight and inflamed. This keeps the implants sitting high and feeling firm for a while. The drop & fluff process will take between 2-6 months. Try to be patient and re-evaluate closer to 6 months post op.All the best

It is normal to be high and tight for about 3 months after surgery. This is when we expect the implants to have fully settled into position. I recommend having your follow ups with your surgeon and he/she will be able to answer your questions/concerns properly with an in person follow up and take the proper measures to ensure your implants settled as desired. 
I wish you the best of luck! 

occur with smooth round implants and less so with textured anatomic implants so it really depends on what kind of implants you have.  Yes, you are way to high on top and you should be asking your surgeon on what you can do to help achieve a better outcome.  And your surgeon should be happy to help you through this as your outcome is a direct reflection of your surgeon's skills.