abdominal pain

I'm having some pretty intense pains, they woke me up out of a dead sleep. At first I thought it was just gas pain, but I've never actually experienced it before so I'm not sure. It's been going on for several hours, with no relief. I'm considering waking my husband to take me to the ER, but that just feel extreme. The pain subsides for maybe 3 min at a time, and only when I'm sitting up. I need sleep, I work full time. Help me out mommas, what do I do?