For Lydia (22) and Phil (22) a surprise pregnancy caused the couple to think long and hard about what they should do next. After finally telling her mother, whom she feared would frown on a baby born outside of marriage, Lydia is now looking forward to being a mum and has a natural water birth planned. Boyfriend Phil was at first reluctant to be a dad – he lived a party lifestyle and initially felt sad about saying goodbye to it. When the baby is due to arrive, Lydia’s squeamish elder sister Anna joins her and Phil in the birthing room. Soon, one of the women begins to feel nauseous, and it’s not the one you would expect.