Yes, but only for certain styles. Typically, you'll only be able to get away with buying regular-size swimwear if you focus on under-the-belly bikinis. In some styles, you may simply be able to size up. Keep in mind that your breasts may be larger. So, if you want to focus on regular sizes, look for mix-and-match swimwear that allows you to shift up or down in size for tops so that you can accommodate your growing bust line.