You can always sub using sythetic urine. Follow the sticky. Also you can try dillution. You have time so read the sticky and practice. Leave out the aspirin its outdated and only load up on creatine 2-3 days before your actual test. The day of the test substitute gatorade for water. Remember the goal with dillution is not to be totally clean but to dillute your specimen to the point of passing the cuttoff, usually 50ng/ml. If you are almost passing with your morning void, your chances are ok to pass with dillution by 7/31.