What size of bra will I be with 700cc gummy bear implants? (Photos)

Thank you for the question.   There is no accurate/reliable/predictable correlation between size/profile breast implant utilized and cup size achieved. For example, I do not think that the generalizations of "200 cc equates to 1 cup" hold any validity or are helpful in any specific or practical way.  In my practice, I ask patients NOT to communicate their goals, or evaluate the outcome of the procedure performed, based on cup size references.
 
 You should also be aware that a significant percentage of patients at your stage of recovery will feel that they are too big or (more commonly) too small. The vast majority of these patients who are initially quite emotional or "depressed" end up being very pleased with the outcome of the procedure performed.
I routinely ask my patients to wait at least 3-6 months before evaluating the end results of the breast augmentation surgery. This waiting time allows patients to (usually) physically and psychologically adapt to the new body image. 
From the physiological standpoint, it takes many months ( and even up to one year) to see the final results of surgery. factors such as swelling, tissue contraction, skin redraping, implant shifting etc. come into play. You may be pleasantly surprised wants to be "drop and fluff" phenomenon has occurred.
From the psychological standpoint, patients undergo an “adaptation period" during which time they get used to the changes that the surgical procedure has brought about. Severe emotional swings can also occur after any type of surgical procedure.
 
 Best wishes for an outcome that you will be very pleased with.