Uti tmi picture.

Posted here because no answers in another room. 
Uti!! I've had really bad burning when I pass urine and have to go frequently. I've just had this, could it be spotting as my last period wasn't normal and I'm not due till 10th may. My urine is really dark too. Any opinion would be greatly appreciated
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*THESE IMAGES WERE TAKEN AT DIFFERENT TIMES***