Will moderate scoliosis (between thoratic-lumbar left) make my preganancy/birth risky or cause issues?

Scoliosis risks ? : Scoliosis in the "left lumbar/throacic area will in general not cause problems in delivery or more "risky". The birth canal is usually not affected, but there are several other situations which may result in potential risk or a C section.

Not necessarily: You may benefit from a pregnancy support in later months to prevent xs stress on back muscles, but pregnancy should not be risky.