The first time I hear the miraculous thud of my baby's heartbeat, I'm clutching my sister's hand. I was so happy when she offered to be our surrogate. But then I see the look on her face and I'm flooded with fear. This precious baby girl might be my child, but my sister is carrying her. Will she really be able to give her up? All I've ever wanted is to be a mother. To have a child to take care of, to complete the...