Extreme pelvis/back pain, is there any relief to be found!?

I have had pretty bad inner pelvis/hip pain along with really bad lower back/tail bone pain. Has anyone else experienced this at the end of the second to beginning of third trimester? It seems to only be getting worse and worse, today being so bad I can hardly walk without being in tears. Will it get better or keep getting worse? Is there something I can do to relive some of the pain?