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

Hello and thank you for your question.  The size of the implant is based on your desired
breast size/shape, your chest wall measurements, and soft tissue
quality.  This decision should be based on a detailed discussion
with equal input from both you and your surgeon. 
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

Two hundred cc implants do sound small and will likely not get you to a C cup.  However if your skin envelope is very tight and your lower pole is tight or constricted, it may be the best option to get a nice result, otherwise the implants will be pushed up and not look natural.  Best wishes, Dr. T.