[BonitaDDs]

You look like you could be a 32B. And just from where the band mark on your skin is (you are a little red where the underwire of the bra sits below your breasts), it is too low below your breasts so that is probably why it may look like a 34B is a good fit, because your breasts are in the top half of it and not really filling in the bottom half of the cup

Unless you were wearing a push up or very padded bra here then the band wire would dig in lower?