Taking MCAT on last day it is offered?

My current MCAT is scheduled for August 27th which is already pretty late in the cycle. I'm a first-gen college student and my GPA is a 4.0 (unless it changes once it is transmitted to the schools) (actual GPA:3.97). I'm feeling anxious about my upcoming MCAT and have been considering pushing it back to September 11th. Would this be too late of a time to take it? (Just applying for TMDSAS)
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: MCAT: Medical College Admissions Test Source Type: forums