Pinching/ripping pain above belly button!

Karlena • Pregnant with baby #3!! Due Sept. 16, 2015❤️
I am 36+4 weeks and for the past 2 weeks i have been feeling this burning, pinching, ripping pain above my belly button. It literally feels like this part of my stomach is going to rip open! When I stand up The pain gets worse and I get contractions everytime I stand up which makes the pain worse! I cant walk, sleep or get comfy. Should I call the doctor or do you think I should just wait it out? I need advice.... I hate bothering the doctors on call 😔