I would argue that you already have a bit of an hourglass shape - your waist has a bit of definition already. That said, the best way to determine what is possible is to look at before and after actual patient photos from board certified plastic surgeons.
Find "before" photos that best ma...
I appreciate your question.
I would recommend that you discuss this question with your surgeon as every surgeon has their own respective post op protocol for his/her patients. Your surgeon is your best resource as he/she is most familiar with your medical history and how you are healing ...
I would discuss with your surgeon. If you are doing an implant for example, I would cancel without question. Otherwise, I would discuss with your surgeon, although it is always safer to postpone elective surgery.