Pregnancy support belt

I think I have the beginnings of spd I’ve been in agony for a little over a week and my pelvis cracks everytime I turn over at night. Wondering what kind of things anyone has done to alleviate some pain? I’m getting an exercise ball tonight to sit on and I’ve been taking paracetamol and sleep with a pillow in between my knees. Is a pregnancy belt worth it?

Thanks in advance ladies