hi doctor im a 21 yrs old. 155 lbs. this is a std question. well one night some girl wanted to give me oral sex but i didnt let her and i still had my boxers and shorts on but had a boner and she put it in her mouth with the boxers and shorts on me, i didnt release semen. two days later i had to pee constantly and it hurt when i pee, so i drank cranberry juice and took a shower and my penis seemed to burn while washing it. the pain was only for one day and havent had since. could this been a uti or sympton of std?