Scoliosis

Is there anybody else who has scoliosis here?  I had the corrective spinal surgery over 10 years ago that left me with permanent Herrington rods down most of my back.  I'll be 7 weeks tomorrow and I'm already noticing increased lower back pain mostly at night but also during the day.  I am very concerned with how my body is going to handle being pregnant, especially as I get towards the end.  Does anybody have any experience or advice to give me?