Sciatica pain

I’m 22 weeks and I have the worse sciatic pain right now. I got it bad in my first pregnancy, my 2nd I don’t remember having it, this is my 3rd and it just started today. I was cleaning and doing laundry and I got the sharpest pain going from my butt all the way to my calf. Now it hurts to walk, bend, and even sitting it hurts. It’s only my right leg.

Im also having really bad pelvic pain especially when waking/spreading legs. It feels like my crotch has been punched on repeat.

What can I do to relieve the pain?