Cramping & pelvic pain... when to worry? (Pregnant)

I went for a walk around 2 p cst, baby felt like she was dropping into pelvic region... my walk became slower and my shoulders started to tense. My whole body was tensing up. My lower abdomen, pelvis, and back started hurting more and more. I stopped, came home peed... extreme pressure in my pelvis, thought I had to go number 2, but didn’t. Everything is still hurting. Jumped in the shower and started feeling waves of pain to where it knocked my breath out of me. I was bending over trying to breath through the pain. Got out and laid down, most of the pain has calmed, but now I feel like I have period cramps. Baby moment is there but very low (she’s typically always making my stomach jump). It’s now almost 6 p cst and I’m laying on my left side with cramps like feeling. Oddly mostly on my left side.

Am I over thinking? Should I call the triage nurse? Go in? Ride it out?

I’m 28 weeks, second baby, didn’t have this happen with my first.