Heartburn & sciatic pain!!

I didn’t sleep at all last night. First time ever. I’m 21 weeks. I kept waking up with heartburn and sciatic pain. I’ve had both occasionally the last few weeks. But never to where I couldn’t sleep. I tried some tums and slept propped up. The sciatic pain is like in my left butt check and only hurts when I lay down too long or try to roll over.

Anyone have any suggestions on how to help!?? I don’t think I can take another night like last night.

My doctor said I can only take tums for now for heartburn.