Confronted by her approaching fortieth birthday with no prospective partner in sight, Sarah Kowalski decides to have a baby alone, first hoping she can use donor sperm donation, but eventually coming to terms with the fact that it's too late to use her own eggs. Facing a diagnosis of infertility, she grapples with what it means--emotionally and spiritually--to bring a child into the world via sperm and egg donation--and settles on her profound desire to be pregnant and bring a child into this world, regardless of the baby's genetic origins.