I had unsafe gay oral sex many times and one-time anal sex without a condom. I don't know the last correct exposure date. My blood test are nonreactive. I can't able to believe that result because of don't know the last exposure date. 1).if I am going to hiv blood test after 100 days which hiv test is more accurate. I will take that is conclusive. 2).what are the stds test I want to take. Std test also conclusive on the 100th day. 3).i have penis burning while urinating for last 19 days. My inside urethra are like dark redness. While urinating after urning its burning too much. 4).which urine test I want take (it has also any widow period or not) 5).if urine test is normal means I no need to go for stds test or I want to go for std 6).last 70 days I don't have any exposure doctor. Can I go for urine test now? 7).if you know the cost of these test means please tell me cost doctors I have lot of confusion and stress for last 2 months please reply to me doctor please. Please don't ignore.