I am a first grade teacher. I have students who have been diagnosed with strep throat. Starting late this morning,I have a very sore throat, chills, muscle aches, sinus drainage, but, no pus sacks on my tonsils...yet. should I go to urgent care on a Sat. Night or wait until morning to,see if my tonsils, get redder and pus sacks? will the strep test show up positive, even at the beginning of strep, or should I wait before going in for the test?