I totally feel for you, SallyNichole! It is all kinds of no fun.
Most pelvic pain is from the babe pressing/pulling the pelvis a bit out of allignment, and all the relaxin really aids that. So a lot depends on each woman's body and where her baby is positioned. In other words, from what I've read so far, what works for one might have the opposite effect for another. That said, have you thought about giving a maternity belt a try? I ordered one the other day, hoping it will help me with some relief.
Also, for some ladies the tailor position really helps. For others, keeping your knees together as much as possible is the ticket. I was doing exercises to stretch my inner thighs, thinking this would help, but it actually made the pain in my pubic bone worse. :( I've tried hard not to separate my knees very far at all the past few days and I did notice a small improvement.