Im a 36B can i fit into a 34C?

If your confused about your size (which it seems you are) i would get a professional bra size fitting. or go to an aerie store. That's where i get my bras and the ociates are so helpful. If your in the changing room and are confused about your size they will bring in bras and help you out. its not awkward or anything because you can wear a shirt when you talk to them or just talk through the door. i suggest you try it :)