Does this sound like endometriosis

So I started to have pelvic pain lower left side starting in November. It was painful to the point where I could feel it in my legs. I went to the doc and was told I had a uti so they gave me antibiotics for 3 days. The pain went away but came right back about 2 weeks later. Now I’m still having pelvic pain but it’s kind of on the right side too and my periods are a little heavier than normal. I also have some mild lower back pain. I have an appt for next month but this has been worrying me because I never experience pelvic pain outside of my periods. Any insight would help thanks ladies