Sciatic Nerve Pain Relief ????

I am about 23 weeks pregnant, and weeks before that I have been having, what I think is, sciatic nerve pain. Basically, if I sit in one position for too long and get up, I am stiff or limp when I walk until I walk it out after a few steps, and sometimes its painful like a sharp pain, in my crotch area or on one side of my hip…..is there anything that can help you relieve this pain or what have you all have tried? I experienced this with my past pregnancies, but with this one it has never been this bad, so soon, to where I am stiff and feel like an old woman every time I get up LOL 😂 please help give me recommendations please? (I’m having something called “lighting crotch” as well 😣)