I'm not sure

Rebecca
Alright, so today I have had a hard time completely emptying my bladder, and it burns when I go. I have also had I have had an increased urge to go. I just went to the bathroom and I saw blood as well. My period isn't for another 4 days, and it could very well be early, but it wasn't the normal amount of blood. Just a bit on the toilet paper.. Any advice?