Help! 26 weeks 4 days vaginal/pelvic pain..

I have stairs in my house. I’m not sure what it’s from... just needing advice. It’s not pain that comes and goes, it’s there when I walk. I can sit down after I shower but just wondering if it’s anything I should be concerned about. It’s probably Braxton Hicks, I’m just a FTM. Nothing like I’ve ever felt before though...