severe back and hip pain, please help! 😢

Starting earlier today I have had lower back and hip pain on one side so I figured it was just sciatica pain (I'm 20w 1d), but by tonight it's my whole lower back and both hips/legs. So bad it's to the point I'm in tears and can barely stand because my knees feel so weak. Im in the bath right now hoping it will help, but so far the only difference is my back now feels bruised and not so much a stabbing pain. My hips literally feel like they're being ripped out of their sockets. Anyone know what this is, or what else I can do to help it? Please any advice would be appreciated I don't remember this from my last baby and it hurts so bad 😢