There is no one best way to train flexibility. Prioritise working on your weaknesses and what you find most challenging.
Most folks will be able to continue training flexibility throughout their pregnancy, with some modifications.
While you can't eat yourself flexi, a sensible, balanced diet can optimise your training efforts.
For most people, working to increase back flexibility into extension is no riskier than training other body parts.
Its not your fault you experience pain. Why you shouldn't blame yourself, and why to run if your health professional blames you.
Hard work doesn’t always pay off. Learn when a less is more approach is best when it comes to flexibility training.