Lunch time had just ended, and Heather Choate, 29, was sitting on the deck in the backyard of her Colorado, home one summer afternoon, watching her five children play. Choate, then 10 weeks pregnant, used the time to ponder the adventures that would accompany adding another member to the family. But a phone call quickly brought Choate to her knees in prayer as her thoughts turned to the safety of her baby and whether she would be around to raise her children at all.