I received a handjob and rubbed her vagina but she had panties on so I dont know if any vaginal secretions came on my hand but I then touched my urethra. At 28 days I took an HIV PCR test and a rapid antibody test both came out negative. Yesterday at day 31 I noticed a pink bump on the underpart of my penis head it doesn't look like a syphillis chancre nor really like a herpes outbreak nor would this be inline with the herpes time line. What possible Std risks did I have should I do any tests and are any further HIV tests required? According to Dr Handsfield a 4 week Antibody and PCR test would be conclusive. Today the bump is barely noticeable I dont know what it could be