so heres the story for a few days i had what seemed like a urinary tract infection and that started to go away then i kinda got hit in the testes kinda hard on accident it hurt for a few minutes but went away the next day when i had a sexual encounter with my girlfriend i had a problem maintaining an erection and when i finally ejaculated i noticed that there was a blood like substance in my semen. i have really noticed any abnomalities in my testicles just a bit of dull achy pain in the left one but no discoloration or anything like that does anyone have any advic. im 21 a college student and have no insurance so i dont want to go to the hospital unless it is absolutely imperative>>