So today I kept feeling like I had to pee and it was only a little, then went to the bathroom and peed a lot of blood, when I wiped there was blood also, it hurts when I pee so I am sure it is UTI, I am worried because I don't want to take RX in case I am pregnant, if I go to doctor do you think they could do blood test to see if I could be pregnant, or too early even for blood test, had positive OPK on tuesday November 4th.