I was tested for Chlamydia and Gonorrhea a week after I received oral. My only Symptom is Frequent urination/ urgency. when i was at the clinic, the instructed me to do a midstream which i thought was odd, they also gave me the 1G of Azithromycin just in case it was something. I came back negative but i decided to retest 3 weeks later to be safe, these were also negative. I guess my question is: would the midstream affect my results and is 3 weeks too early to check? would the antibiotic cause a false negative at that point?