Do I have double bubble? (photos)

At 6 weeks postoperatively, you are still rather early in your healing process. It is still a little too early to tell whether you are suffering from double bubble. Your photo does indicate a very slight indentation but this may round out with time. I recommend that you follow up with your plastic surgeon to discuss this concern as he or she is best equipped to answer questions regarding your particular case. Best of luck!
 

Hello,While most of the breast augmentation world is focused on breast base diameter, BW or BWD, there is at least one other very important measurement that should be made to determine a patient's anatomic maximum capacity: nipple to fold distance. In your case, it was too short for the implant you got. As time goes on, you will decide whether to correct it or not (frequently they are of minimal aesthetic impact). If you do decide, your tissues will likely have expanded sufficiently to accommodate the current implant size, so downsizing would be unnecessary, just capsulorrhaphy. 

Dear kushkush07,
it is hard to tell for sure just by looking at your photos. Though rare, some women who undergo breast augmentation will develop a minor deformity known as a “double bubble,” in which additional folds appear underneath the breasts due to the implant accidentally shifting or contracting post-surgery. In most cases, the implant simply slipped too far down the chest wall and traveled behind the breast inframammary crease (the area where the lower breast meets the chest), instead of moving forward to fill the breast cavity. If left untreated, the lopsided implant will form unnatural indentations, resulting in an odd “four-breast effect” rather than the full, rounded chest the patient initially desired.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery