I Believe I Have A UTI. I've Had A UTI

I believe I have a UTI. I've had a UTI before, which was self-diagnosed. I took AZO which helped alot. With this one though, it's different. Two days after my period started, I started feeling symptoms of UTI. However, I also feel some discomfort around the right side of my pelvis area. What could this be? Also, I experience pain when having intercourse. (That symptom has been going on for years.)