I found a physio who specialized in pregnant women and treating spd, he wasn't able to re align the joint but he could ease the pain significantly. He also diagnosed sciatica as a side consequence of having to walk differently and he could treat it for me. In the end I didn't need the crutches but I couldn't walk very far or lift dd1. She would have to climb onto me when I was sitting, that was the hardest part, not being able to pick her up.
Thats what my physio did. She said she could realign the joint, but it wouldn't hold because of the relaxin. So she just worked on the side effects - sciatica being one of the WORST ones!! Argghh I hated lying there in bed with the pain shooting down my leg.. awful awful stuff.