Bathroom Question (TMI)

I have been having to pee every hour ( no kidding). I have taken a preg test yesterday, came back neg. it was a cheapie test, and I took it 4 days before AF was do, so I'm not sure if it was even accurate. I'm wondering if I could be pregnant or maybe have a UTI. But it does not burn or hurt when I pee, and I have no other symptoms besides peeing every 45 mins to a hour.