Friday,I had unprotected oral sex. 2 days later, I had burning sensation during urination and I noticed some milky discharge from my penis. I am married and panicked. So that evening, I took 1000 mg amoxicillin. The next day (Monday) I was tested for several STDs and showed positive for HSV-1 only (no chlamydia or gonorrhea). 2 days later I read that I may have been tested too early. Since I couldn't wait around for ever before I had to have sex with my wife, On Thurday, I started taking doxycycline 100 mg 12 hours apart and amoxicillin 500 mg 3 times per day. On Monday, I was tested again and everything was negative. I never stopped taking the doxy and amoxy and I was planning on continuing to complete 7 days on these antibiotics. Could these Antibiotics be responsible for a false negative chlamydia/gonorrhea result? The only time that I showed symptoms was at 2,3 days after exposure. Thanks in advance for your help.