Lumbar support!

21 weeks and already having some pretty knarly back pain. Not much weight gain (about 4 lbs although i was overweight before so dr. is not worried about that) but the center of gravity change is enormous. I work 10 hour days at a computer. About 6 hours in i feel done for the day!. I ordered a lumbar support with a detachable cooling gel thingy and am trying it out for the first time today. So far I feel very comfy. Wish me luck that it helps!! I also see a chiropractor every 1 to 2 weeks and that helps too!.