Cradle and all - James Patterson

Kathleen, from privileged Newport, Rhode Island; Colleen, from a poor Irish village - two teenagers who are both pregnant, and both in great danger. A private detective named Anne Fitzgerald suddenly has the case of a lifetime - she quickly finds herself caught between the certainty of science and the possibility of a miracle which could stop the terrible medical epidemics now sweeping the globe. Once a nun and now a private detective with a Masters in psychology, Anne's very belief in humanity is put to the ultimate test as she comes face to face with an unimaginable evil.