I am 19 years old. I am 5'5. - Breast Implant Experience - Beverly Hills, CA

I am getting a breast augmentation on December 17th, 2013. I am getting between 500 and 550 ccs. I am not sure which one. I am getting saline through the belly button approach. I am 19 years old. I am 5'5. I weigh between 100 and 105 pounds. My doctor is Dr. David E Kim in Beverly Hills California.
Here are some before pictures. (For some reason a lot of people ask me if my boobs are real) So I guess that means they already look fake. Anyway I have never gotten a boob job in my life and this is the first one I am getting. VS says I am a 32C, but I feel like they exaggerate a lot. I would consider my self a small B cup.
Comment and let me know what size you think I should get.

So here is the video that helped me choose my size. As you can see she is pretty petite and ended up getting a 600cc and looks great. (In my opinion) (The first time she got a 400cc, and wasn't happy with the size so she ended up going bigger.) I am planning on going a little bit smaller than her because I weigh a little less, and I am starting out with more breast tissue than she did the very first time around. I hear of so many women getting Boob Greed, and thats my biggest fear!
BTW this is also my doctor.
Let me know what you guys think!

I have already paid for the surgery, but I am starting to get cold feet! I am freaking out because I thought my boyfriend was the only one to tell me I am crazy, but as I tell people I am hearing it more and more. I don't know why I feel this way especially because for the past 2 and a half years getting this was the only thing I was thinking about. I like the way my breasts look now, but I just hate the size. I hate having to wear that 2 inch thick padded bra just to look even to the rest of my body, and even with that I feel like I look small! My biggest fear is that they will end up looking bad! Is it normal to feel this way? Did anybody else go through this? Let me know what you guys think!