Endless Questions About Boobs! Help a Sister out - Redondo Beach, CA

So I've started seriously considering getting implants in the last month or so. I'm 5'6" about 135lbs, athletic, 34B( I don't fill it out completely) and 23. I've very comfortable with my body, especially since I discovered the gym and started getting my squat on :) but I think breast implants would be incredible! My boyfriend and I discussed it and he is very supportive although I don't think I will tell my family until closer to the surgery because they will not approve. I'm basically researching and reading everything I can from women who have gotten the surgery and their experiences. I want to end up with a D or DD which I think will look great on my body but my best friend insists I'm too "tiny" for that size. I think my. Odd is strong and they would fit well. But I'm wondering about developing back pain and if that is a likely possibility? Also, which is better, silicone or saline? And if anyone has any recommendations for good doctors in the area? Any and all advice or questions are welcome! Thanks and I'm glad this community exists so I have a whole bank of info and support :) xo

P.s. I included some pics so you can get an idea of my body. One was in the summer when I was a little skinnier but as you can see the weight leaves from my boobs ferociously!

So I had my first consultation yesterday and it was awesome! I loved the 3D imaging and I hadn't gotten a chance to do the rice sizes yet so the "try on" bobbies were great in getting an idea of what I want. I went in withan idea in my head of the type and measurement etc and I wasn't too far off. I showed the PS my pics and explained the look I was going for and we figured it out. He recommended 550ccs, textured, silicone, high profile, all to fit my body, shape,and the end result I'm trying to acheive.

I was SUPER nervous going in to the appointment and came out excited and happy, so that wasa relief. The price was definitely not what I went in thinking it would be so that was one set back.

I have another consultation set up on January 8th with a different doctor, so we'll see what he says and what his prices are. I definitely don't want to compromise quality for price though, I've seem some lower end jobs (scary).

After that I'll set a date which is looking more like january or February which is so soon! I am so excited!!!

The only worry that I've had lately is with the size I'm getting, how low will they droop. The textured and high profile implant should help but this girl I personally know bothers done and they are so low now. And I'm worried that because of the size of the implants I want to get and the weight they'll have, they will leave the top part of the chest flat and have bottom heavy boobs. How common is her boob result? Will it happen to me? I hope not :(