My first couple years I grew slowly and then year 3 I grew to a C cup. I then had another growth spurt at year 6 (DD). I'm not saying that'll necessarily happen for you but at least on my end, my progress goes against the usual timeline that gets thrown around. I think people develop at different rates and it's difficult to give a timeline for something so biologically complex.
You can try wearing a padded push-up bra and use inserts to bump up size while waiting for growth.
My first couple years I grew slowly and then year 3 I grew to a C cup. I then had another growth spurt at year 6 (DD). I'm not saying that'll necessarily happen for you but at least on my end, my progress goes against the usual timeline that gets thrown around. I think people develop at different rates and it's difficult to give a timeline for something so biologically complex.
You can try wearing a padded push-up bra and use inserts to bump up size while waiting for growth.