Pus Like Penile Discharge After Ejaculation

I have had unprotected sex a few times with a woman who had multiple partners about 6 months back.I have been experiencing a pus like whitish yellow sticky discharge from my penis only after ejaculation.There is absolutely no discharge throughout the day,it only happens about an hour after i ejaculate.I have got myself tested for HIV,Herpes and Syphillis (syphilis)...All my reports are negative.My doubt is it sounds like the symptoms of Gonorrhea and Chlamydia although i have no rash on my genital area and there is no discomfort while urinating as such...My sexual arousal is normal there is no pain during erection etc...everything else seems normal.What could this discharge mean?It happens everytime after i ejaculate....

[Vance2335]

See a Dr, this does not sound like a STD related issue. But I would test for gonorrhea and chlamydia to be safe.