Concerns...

I went to urgent care this morning with what I thought was a UTI. My bladder feels like it’s cramping up and it’s just uncomfortable. I did the instant test last night and it showed leukocytes which is what he saw on their test as well. He said that he wanted to send my urine off for a culture before he prescribed antibiotics, which I’m in complete agreement with, I just don’t understand the bladder pain. He asked if I was having cramps or bleeding, which I’m not. I mean I know it’s crazy, but when I pee it feels like my bladder goes crazy down there. I have an apt with my OB Thursday and my urine results should be back Tuesday. I just am worried something is wrong. Maybe it’s just because I know these first weeks are sensitive and carry a high chance of MC. This is just my first pregnancy and I’ve had bladder pain before with a UTI, I just feel like I’m more nervous this go around because I have a baby down there I need to worry about. Has anyone else experienced anything like this? Should I try to see my OB sooner, or just wait until Thursday?