Twice within the last week non consecutively I have noticed blood in my precum, it was only in the very beginning and afterwards everything was normal, there was none in my semen upon ejacaulation. But when I went to pee after there was a very light amount in my urine just enough to turn it a little darker than normal, after that everything was normal. I am 24, have been tested for STI’s recently, also no new sexual partners and have no other medical issues, no problems with urination no pain or burning. What could this indicate?