'Call the Midwife' Season 3 Trailer Previews A Time of Change for the Midwives and Nuns

After the devastating loss of Nonnatus House in the Christmas Special, the midwives and nuns are faced with even more changes in the season three trailer. Jenny is falling more and more in love, Chummy can’t adjust to not being a midwife anymore, Sheila wants a wee one of her own and Trixie is rocking