I agree that it's probably a UTI. I would call your OB/GYN or your primary care doc and get in soon. UTI's can become kidney infections if untreated, so you don't want to ignore it. Also, that's the fastest way to get some answers about your symptoms, so I'd go get checked out.
If you do not have any other symptoms, I would say it is a urinary track infection. Setup a Dr visit to have him validate and prescribe antibiotics.