Tigmi
From Tardis Wiki, the free Doctor Who reference
Tigmi at first appeared to be an artificial intelligence system used by Bel. She talked to it when she was happy, upset or annoyed. (TV: Once, Upon Time) In the sixth episode of Flux (TV: Vanquishers), Tigmi was revealed to be Bel and Vinder's unborn baby whom Bel was communicating with using a baby monitor.