You sound like a real ass here. For some people it is true. This post is beyond ignorant.
i've heard that the size does not affect the ability at all. im small chested and managed to make plenty up until i went back to work from maternity leave at 7 weeks. :)
(note after reading the first poster) - my milk decreased due to not being able to pump enough - it didnt just crash on its own or anything. just wanted to throw that in there =)
Thanks for adding the clarification for future readers. I am a champion of BF-ing and have helped many a new mom make it work in the past 24 months. Nothing gets under my skin worse than the un-educated mothers who say, "I tried, really I did. I wanted to do it.. my milk just never came in." or "I just couldnt make enough" Because it's flat out just not true. I'd rather hear, "I wanted to do it, but it hurt. It took too much time." Im OK with that honesty. BF-ing isnt for everyone. It's VERY hard for working mothers and I respect the hell out of power pumpers- I could never do that myself. Honestly, if mom is happy, baby is happy, and baby is gaining weight then you're making the right choice- be that breast, formula or a combination. But don't blame your body.
ETA: And FTR there is a huge difference between being passionate about a cause and being self righteous and accusatory.
All of this. There are actually women who do everything right and they still can't produce enough. People with your attitude make them feel even lower than they already do.
OP, as stated, breast size has nothing to do with supply. HOWEVER, it's not as simple as some would make it. Just because some people have a great BF experience does not mean anyone else will. Educate yourself, find IRL support whether it's your mom, LC or a BF group. I wish you an easy time, but better to be prepared, just in case.
We nursed for 3 weeks before I just couldn't handle the pain of DD's bad latch (and if 3 LC's, pedi & various nurses couldn't do anything to correct it...). I EP'd for 3 months before choosing to hold onto my sanity and switch to formula. FWIW, In the beginning, when I was nursing, I had to supplement about once or twice a week because I wasn't producing enough. When I went to pumping, I did several "power pumping" sessions to boost my supply and was finally able to keep up with her.