andrew o'clee , 36 , hid his secret second family from his first wife and has been jailed for eight months .
but michelle , 39 , uncovered the deception when she came across footage of him .
but while they were trying for a baby together , he had already started his double life with a new woman .
he later turned up at the birth of his daughter , amelia , and cut the umbilical cord .
he started the affair with philippa after he caught shopworker michelle being unfaithful .