Sore hips and lower back..help!

My lower back and hip area is so sore. I’m seeing a chiropractor. I’m on my feet or in a chair most of the day as a teacher. The support band I’ve been given isn’t helping. It is not sciatica.

I had discomfort with my first pregnancy but this time around it is unbearable at times. I limp when I walk and dread going to get my papers at the printer down the hall. I’m only 29 weeks. I love being pregnant but the pain is wearing on my nerves and taking a toll on me.. any suggestions?