I had a major car accident 2 and a half years ago, which resulted in a fairly serious lower back and neck injury (mostly intra-muscular and nerve damage, but caused ALOT of pain) I was starting to feel a little better right before falling preggers this time...after having lots of acupuncture, lots of physio and lots of exercises that the physio gave me, as well as cardio (keeping the joints/muscles moving and working helped lots) Then I fell pregnant...and all the hormones that relax your muscles in pregnancy started wreaking havoc on my body, and my back was incredibly sore once again. Doc didn't want to put me on anything strong and I personally don't like taking medications at the best of times, let alone when pregnant - so the strongest I have been on since being pregnant is Panadine and sometimes Panadine Forte (sparingly) at the worst of times. Apart from that, these are the main things I have done:

* healthy diet & LOTS of water - already found this helpful beforehand anyway, but moreso now - helps keep your head in a good space and your body functioning well
* staying as positive as I possibly can
* alternating between physio/acupuncture and remedial massage sessions - sometimes up to twice a week if necessary. (and the massage, although painful on the sore parts, is heaven on the rest of your body when you're pregnant!)
* staying active even when I've been sick (which has been about 90% of the pregnancy ) - sitting/lying still for too long is not helpful...muscles and joints are made to be moved
* plenty of heat packs/warm baths/ hot showers

All in all, now that I'm at the end of the journey, I can definitely say that these things greatly improved my pain levels. Now that bub is lying on my lower spine a bit here and there, there is definitely a bit of extra pressure and pain at times, but I try to relax my body and mind as much as possible and it really does help.

I hope you start to get some relief and find some methods that work for you - I know how you feel