The Garden by Clare Beams

It's 1948, and Irene Willard is pregnant for the sixth time. After five miscarriages, she checks into an isolated hospital that promises to deliver this child safely. Between examinations and experimental treatments, she discovers a mysterious garden on the grounds, where the boundary between life and death is strangely permeable. As the doctors' plans crumble, Irene tries to harness the power of the garden for herself. But she must face the unimaginable risks associated with such unimaginable rewards...