I Just Went To The Dentist And Had Three Teeth

I just went to the dentist and had three teeth pulled and had like six shots of some type of novocaine. Now tomorrow I made an appointment at my doctors for a drug test to be preformed for a court date I have on August 20, 2015 and I want to make sure that this test will not come up with a false positive, so should I try to reschedule in a couple days or will I be alright?