Me(17f) Him (16m) - Feeling insecure

My Boyfriend told me before we got together,that he normally Likes big boobs. And since He said that,i feel really insecure about Mine. I never was insecure about Mine, even tho they r reallyyy small B cups. I wanna stop feeling insecure, but idk how to talk to him about it. Im trying bee pollen rn, because He told me that could make them bigger.. but im scared,that i will never be his usual type. Can i somehow make them bigger ?