ok so my semen is red coloured. i had unproteced sex a while ago and had azithromicin followed by other antibiotics to clear stuff up but my urine is very clouded and recently (1 month after) my semen was very off coloured. i 100% havent infected anyone as i may have anything. what could it be? my doctor said a urinary tract infection but i usually self prescribe so could someone tell me please?