Call the Midwife's final episode of series 6 airs on Sunday, March 12th. Missed an episode? Catch up on BBC iPlayer and BT TV Catch-Up.

Three more series of the show have already been confirmed, which means the show will definitely remain on the BBC until at least 2020.

[Read more: First look at the Call the Midwife series 6 finale]

[Read more: Call the Midwife Nurse Patsy return confirmed]

[Read more: Laura Main reveals childbirth Call the Midwife scenes made her broody]