Severe weird back pain at 27 weeks

I’m just turning 27 weeks today and I’ve been having really bad back pain for a little over a week. It comes and goes and it doesn’t seem to be brought on by anything in particular. It will be incredibly sharp where I stop in my tracks and have to breathe and it stays for minutes and sometimes up to like 5 or ten minutes. It doesn’t feel like my sciatic pain, a uti, or my back pain. I still have all of those, but this pain is sharp, makes me want to cry, and goes around my whole low back (like my hip line) and then wraps around to my front but doesn’t go all the way into my belly. I don’t seem to have Braxton hicks when it happens but I do have cramps throughout and the Braxton hicks happens a few minutes after the back pain. I’m waiting for my dr to put a urine test order in to just check for a uti, but was just wondering if anyone has had this?