Help wondering if anybody has experience this?!!

Jessica

I am currently 32 weeks and 3 days and i have this pain in my upper belly/sternum - basically where my bra straps are under my boobs! It's right in the middle tho. Has anybody experience that pain it hurts a lot ? It feels like if I were sore from working out. Should I be worried? Or maybe it’s just muscles expanding due to making space for the baby ? I had mentioned to my dr and she just did lab work and collected 24 urine test 🤔 I have an appointment on Wednesday.