You should definitely ask your doctor. Asprin can increase the chance of bleeding before and after surgery. In my practice, we require patients be off asprin for 2 weeks before and after surgery. It will also depend if you take asprin on a regular basis. This is definitely something you should ask your doctor.
If you are otherwise healthy and did not take other medications, the cessation of aspirin one week prior to surgery is likely sufficient. However, this is a decision you should take together with your surgeon.