I'm 33 weeks pregnant, and have had a pretty normal pregnancy so far. I started experiencing back pains a few months ago, and rib pains shortly after that. Today began much as any other day, with rib pains as the baby moves around. But throughout the day, the pain in my ribs has intensified, and has since become accompanied by extreme back pain, lower than my shoulder blades. This pain, which is pretty bad, has been going on now for the past hour. I can't find a comfortable position aside from standing and walking, and I am trying to decide if this is something I should call my clinic about right now, or something I should try to wait out. Any help is appreciated!