31yo, 5'11, 122lbs, athletic/runner, 32aa with Sientra 310cc Anatomical Textured Implants- Hoping for Full B

Hello. I will undergo a breast augmentation in 9 days. I am excited and nervous, though mostly excited and ready to get it over with at this point. I scheduled my augmentation this time last year, and was supposed to have my procedure in January '17. I felt unsure, skeptical and conflicted at the time, so I decided to cancel and think about it. A couple months or so later, I was back on the idea and ready to set another date. So here I am, only 8/9 days away...

I never developed past 32aa and I hated that while growing up. I used to eat a lot of peanut butter, even though I hated it, because a friend told me it would help your boobs grow. I stuffed all the time and always felt awkward during intimacy when my little ones were involved and finally revealed. It got annoying having my breasts referred to as "Hershey kisses". Not cute.

I'm big into trail running and I enjoy all things outdoors- mnt biking, climbing, etc. My level of activity doesn't do my breasts any justice. Pretty much, the more I run, the smaller they get. This reality is annoying, as I really like my body as a whole, but I just feel the "no boobs" thing kinda throws everything off and makes me feel less like a woman and more like a little girl on the verge of puberty. I like that my little ones do not interfere with running and sports, as they are so low maintenance in those regards, but still, overall I feel something is missing.

I practically live in a sports bra, and as small chested women know, they squish whatever you have down to nothing. My Hershey kisses practically melt into my chest. So sad. I fill my sports bras with inches upon inches of padding to give me some shape, but they get all soaked with sweat after a run and start to itch and cause rashes. I also use these fake silicon boob things that are really heavy. By the end of the day, the inserts will have migrated to the middle of my bra into one big clump of foam and plastic- fake uniboob.

I'm hoping for implants on the smallish side, and really fear being too big for my liking. I like the idea of going smaller than 300cc, like 230-280cc range, but I also want to have a nice shape and look proportionate. My doctor likes 350cc or 310cc for me, so I am hoping for the 310s.

Anyway, here are my stats:
31yrs old, no kids
5'11
125lbs
32aa
11- 11.5 bwd
Going with 310cc Sientra anatomical, textured, moderate profile. Hoping for a natural, proportionate, nicely shaped, full B!

Just some additional before photos of a bralette that I love (but do not fill out) and a plain t-shirt.

Because I have such little breast tissue, my doctor says that the shape/type of implant is really crucial to the overall outcome, as the implant itself will be what really creates the shape of the new breast. My doctor likes using anatomical implants on patients like me, and I feel that the outcome of that type of implant may be the closest option to meeting my goals.

I was originally interested in 230-280ish cc's, but my doctor thinks 350cc or 310cc anatomical, textured, moderate profile, will probably suit me best. I am hoping for his smallest suggestion- 310cc. If that size appears too big in operation, he may try a smaller smooth, round implant (which is kind of a bummer as I want a small implant, but also want the anatomical which can't go smaller than 310).
I want an overall nice shape, and hope that my outcome will be in the full B range. I know small implants can look "stuck on" or just as fake as too big of an implant, so overall I need to focus not so much on cc's, but more on shape and what fits my body best. Avoiding the "bolted on" or grapefruit (or golf ball) cut in half and glued to my chest is an absolute must.