Hi Bonita!
Yes I am for sure a 34 band, I've tried 32's and it feels like I'm getting the life squeezed out of me! And yes I have tiny boobs.
It is strange as I am really tiny on top
, I wear a UK6 on my top half (US 2), maybe because I'm wider sideways rather than outwards if you can picture what I mean, i.e. I have 39" hips and the inches are all in the width, not because I have excess fat, I'm quite curvy that way 
Update: I have just measured and I am between a 29.5" and 30" underbust (breathing in and out) and around 33" at the boobies. From what I've read you need to be 4 inches across the bust bigger than your underbust to be a full A cup so that is why I fit and not fill them, 1/2 an inch to go on each boob (or ideally 0.25 and 0.75 as my right is smaller). Hopefully over the coming months I can grow that little bit more.
Yes I am for sure a 34 band, I've tried 32's and it feels like I'm getting the life squeezed out of me! And yes I have tiny boobs.
It is strange as I am really tiny on top
, I wear a UK6 on my top half (US 2), maybe because I'm wider sideways rather than outwards if you can picture what I mean, i.e. I have 39" hips and the inches are all in the width, not because I have excess fat, I'm quite curvy that way Update: I have just measured and I am between a 29.5" and 30" underbust (breathing in and out) and around 33" at the boobies. From what I've read you need to be 4 inches across the bust bigger than your underbust to be a full A cup so that is why I fit and not fill them, 1/2 an inch to go on each boob (or ideally 0.25 and 0.75 as my right is smaller). Hopefully over the coming months I can grow that little bit more.