EXTREME RIB PAIN

Does anyone know how to relieve extreme rib pain. If I had to put a number on the pain from 1-10 I would put it at 9 I am almost 37 weeks pregnant. The pain is on both sides.  It's a stinging pain. Laying down or hot showers don't work. Sitting doesn't work.  Walking or standing does not work. I don't sleep from the burning pain. What can I do?! I am willing to try anything