When will my boobs grow?? (Please Read?)?

Kso, I am 14 and I am a 34B and I have had boobs since I was 9. I just recently went to a B about 1 or 2 years ago and they haven't grown since. And when I don't have the bra they look kinda small-ish. Like not an a but like a small B. But my family does have bigger boobs. Like a lot of the teenagers in my family have a C. And I kinda take after my mother in a lot of ways like my but, and my figure and stuff regarding development and my mom has a D but that's cuz she had 4 kids. But I kinda develop faster than her tho... But like I just wanna know what's the normal age for the bulk of the boob growth to happen?