I'm a firm believer in weekly maternity body massages, if you can afford them. Helped TREMENDOUSLY with my sciatic pain. Good luck!
Get a hard small ball, like a tennis ball! Use it on the areas that hurt. I have si joint pain, and siatic pain! My Pilates teacher told me to sit on it on the side it hurts and move it around in circles... same with my legs and small of back! It helps so much...
I think i had sciatic nerve pain. Istarted seeing a chiropractor. The pain was only in my left butt check and sometimes it went down the back of my leg it was my lower spine its hard to describe. I started doing stretches and sitting on a heating pad it helped me.