I had unprotected anal sex before 4 weeks. I know it was a mistake. I just got carried away at the moment. I have itching in my private parts, mouth ulcer, body pain as my symptoms. I took a 4th gen test today at 28 days and the result came Negative. Can I stay in peace once for all or should i wait for 6 weeks to take one more test as many websites suggest on internet. I am really worried and mentally depressed. I really don't want to go through the test process again. Pls tell me what should I do?