A judge is considering whether to release a former Stoughton police officer charged with killing a pregnant woman. Matthew Farwell’s case will be back in court today; he is accused of killing Sandra Birchmore, 23, and her unborn child in 2021 to cover up their sexual relationship. Last month he requested to be released on bail while awaiting trial. He has been behind bars since being arrested by the FBI in 2024. Prosecutors say Farwell groomed B…