Lower back pelvic pain?

Over the past two days, I'm having an increasingly painful feeling around my lower pelvic region in the right side of my back. It becomes sharp and shooting if I move too fast or into the wrong position. I do have scoliosis so I'm hoping to attribute this pain to simply my pelvic bones beginning to stretch & my body being under the stress of growing a new life. I'm around 5 weeks & 3 days right now. Is this kind of pain normal in pregnancy or should I be concerned? No cramping has accompanied it, just the kind of gnawing pain that won't leave that bone area.