Breast looking small.
The only way to know is for you to try bras on after your swelling has gone down. However, as you know, bras all fit differently based on manufacturer and style so a C/D cup is very possible based on what you buy.
Congratulation they look very nice, In my experience it could be possible end up with a D cup. You would need to wait till the drop and swelling to go down. Best luck to you.