Surgeon says 200cc teardrop unders for me will this be too small?

At your height of 5'4" and a bra size of a 32A, a 200 mL implant does sound a bit small to me, particularly considering you want to be a C cup.

One of the best ways to determine the proper size is to have your plastic surgeon place "sizers" and a bra with a T-shirt and view yourself in a full length mirror. Try sizes that are both too small and too large so that you know the limits of what appeals to you better. You can then choose something in between and you can narrow it down to what you like.

Since you are unsure of the implant size that you have chosen, you should schedule for another appointment with your plastic surgeon. Best of luck to you.

It is very difficult to determine the best lift you will need (recommended based on your photos) or the exact size and shape implant you will require to best match your ideal breast image without an examination by a board certified plastic surgeon. Not just any board certified plastic surgeon, but one with many years of frequently performing breast augmentation surgery including different approaches, techniques and implant choices. This is because several measurements not to mention your breast characteristics are needed to determine the optimal implant size to obtain your goals. Without knowing these dimensions it would be difficult to make this determination. For example, the existing base width of your breast will determine, in many cases, the maximal volume per implant profile that you can accommodate. To illustrate; a 100 cc difference may make a significant difference with a narrow base width breast, but much less of a difference if you have a wide chest wall and wide breast “foot print”. Therefore, just because your friend may have a great result with let’s say a 300 cc implant to make her go from a “A” cup to a “C” cup size does not mean that you will have the same result with the same size implant. The same process goes for just filling in the upper part of your breast without becoming much larger. Further simply placing implants in a bra to determine the size best for you is not always accurate as the bra often distorts the size, is dependent on the pressure the bra places plus the implant is outside your breast and not under it among other variables. Computer software morphing programs that automatically determine the best implant size can be helpful in some but not all cases (e.g. doesn’t work well in my experience with existing implants, sagging or asymmetric breasts). Using “want to be” photos however are useful if simply provided to the surgeon as I will further explain in the link below including silicone vs saline implants

The number one complaint patients have post breast augmentation is that they wish they had gone bigger. Typically for your size you will likely only get just around a cup size with 200. This may not give you the size your looking for.  It is always best to try on sizes so that you are able to convey to your surgeon what volume you think is the size you would like to be. Then both you and the surgeon discuss if that size will fit and give you the look your hoping for. Too many time we see patients that have gone to other plastic surgeons where the doctor did not listen to the patients desires and instead picked what the doctor thought would look good on them. Then the patients were left upset that they felt too small. I would suggest a second opinion.