Hi Yangi. 
Thank you for posting your question.
From the figures stated, it seems that you are a fairly petite girl. The implant sizes you have mentioned will certainly give you a noticeable result. Have you had a chance to "trial" the different implant sizes? This can be done by putting implant sizers or test implants underneath your bra and clothes to see what they feel and look like. A certain increase in volume (cc's) of implant does not always equate to the same "cup size" increase in two different patients. Many other factors come into play, such as the patients body shape and type. Every breast augmentation patient has a range of implant size and shapes that will suit their body, and one way of determining which size to settle on is to try them on you.
I hope this helps. All the very best.
Kind regards,
Dr Ray Goh