Unplanned : a novel
(Book)

Series numeration from goodreads.com

When Kennedy Stern's childhood pastor asks her to volunteer at his new pregnancy center, she carves time out of her rigorous college schedule to promote the cause of the unborn. After receiving a disturbing call from someone far too young to carry a child in the first place, Kennedy can no longer blindly hide behind the pro-life platitudes she grew up believing. She resolves to locate the unknown girl but winds up entrenched in a mystery that grows more convoluted as it unfolds. Soon, Kennedy finds herself a pawn in a deadly game of intrigue, at the mercy of those who consider a few innocent lives a small ransom to pay in exchange for personal and political victory.