Help please 😬

Rebekah • 28, engaged, baby girl 12/27/19💕, lab mom 🐕

I am currently 18 weeks and I work on my feet a good bit of the day. Usually by the end of my work day I am really sore in my lower region about where the baby should be. Im wondering if that's normal or if it's something I should be concerned about. I plan on calling my doctor tomorrow.