When Hannah Marsden and her partner Michael Lewis fell pregnant, it came as a total shock. They were about to begin IVF after being told by doctors it would be "impossible" to conceive naturally.
They were so excited to meet their miracle baby, and at first the pregnancy went smoothly. After 15 weeks, they discovered they were having a girl - something they'd both secretly hoped for.
But during a 20-week appointment, the sonographer was unable to complete the scan. Hannah, 26, and Michael, 38, knew something was wrong. After being referred to a specialist hospital, they were told their unborn daughter had a life-threatening condition called hypoplastic left heart syndrome.
