What two ironic twist does the plot take in this act The crucible 3?

1) Abigail turns against John Proctor. After accusing John of witchcraft, Abigail suddenly recants her testimony. She claims that she was never a witch and that she had been lying about John all along. This revelation shocks everyone in the courtroom and drastically changes the course of the trial.

2) Elizabeth Proctor is found pregnant. Shortly after Abigail recants her testimony, Elizabeth Proctor is arrested and charged with witchcraft. This news devastates John, who is desperate to save his wife's life. However, Elizabeth's pregnancy complicates matters, as she cannot be executed while pregnant.