Sciatica

Help ladies please, I’m a FTM and also a teen momma and I have really bad pain on my sciatic nerve which is making it really hard to sleep or walk and I’m already 34 weeks and 2 days. My doctor prescribed me muscle relaxers when I was 28 weeks to help relieve some of the pain but they don’t help and I don’t want to keep taking them for the sake of my baby. How do I relieve some of the pain without medication? Any help would be greatly appreciated