450cc im a size c cup right now 5'7 150lbs. What size will i be? (photos)

Unfortunately, you have not told us your bra size just your
cup size. If you are 32 or 34 each 100
cc’s of implant corresponds to 1 cup size change. If you are 36 or 38 each 200 cc’s of implant
corresponds to 1 cup size change. From
this, you can compute the volume required to achieve your desired goal. 450 cc implants are large, will not fit
retro-pectoral, will extrude inferiorly and laterally requiring revision. 22% of women who undergo breast augmentation
alone require revision within 2 years because they are dissatisfied with the
result. Frequent causes of
dissatisfaction are over implantation and not performing a simultaneous lift
when needed. From your photographs, it
is possible that you may benefit from a simultaneous lift with
augmentation. I recommend a new technique
called Breast Augmentation with Mini Ultimate Breast LiftTM. Using only a circumareola incision it is
possible to reshape your breast tissue creating upper pole fullness, elevate
them higher on the chest wall and more medial to increase your cleavage. Through the same incision, implants can be
placed. Aligning the areola, breast
tissue and implant over the bony prominence of the chest wall maximizes
anterior projection with a minimal size implant. Small round textured silicone gel implants
placed retro-pectoral look and feel more natural, are more stable, less likely
to ripple or have complications needing revision. Implant profile is irrelevant in the
retro-pectoral position since the muscle compresses it.Best Wishes,Gary Horndeski, M.D.

There is no way to guarantee a particular bra size. Bra sizing varies greatly between bra manufacturers and a C in one bra will be a D in another. What matters more than the assigned bra size is the way the implant looks on you. The best option for your body and aesthetic goals can be determined in a thorough implant sizing session.Implant sizing depends on several factors. One of the most important factors is your breast width. Generally, your surgeon will measure your breast width, and then provide you with a range of implant sizes appropriate for your native breast size. There are more nuances to it than just what I've described, but this approach works for most women.I usually have my patients bring in a large bra and a tight t-shirt to do sizing. I'll then choose 3-4 implants that I feel are appropriate, and have my patients place them in the bra under the tight t-shirt. My patients can then look in the mirror and get a good sense of what they will look like with the provided implant sizes. My patients like this approach and get a great idea of how they will look.By using this technique, your surgeon can outline a range of appropriate implant sizes that will be aesthetically pleasing, and you make the final decision.I hope this helps. Good luck!

Sounds OK from what you have asked for. But only IN PERSON examination would allow a more definitive response... 

If the second picture is in your current breast appearance, you should be able to accommodate 450 cc breast implants.  My guess based on your photographs is that you will certainly be a full D cup.The best thing for you to do is to undergo a breast implant sizing system of violation by your plastic surgeon.The surgeon can place different size breast implants into a non-padded bra and you will be able to get an idea of how you will look with that size breast implant.Be sure to consult a very experienced board certified plastic surgeon.