For what it's worth, a mother can go a week or so after the water breaks before giving birth. The interventions that occur in modern medicine are what make it imperative for a mother and her Dr. to pay close watch once her water has broken. If no internal exams are performed after the suspected break, the chance of infection is virtually non-existent. Of course that means no baths or sex in anticipation of labor actually beginning, but the breaking of the water as being the immediate and expected onset of labor is a misnomer.
D.,
I'm happy to hear that your friend's birth went well, and that she and baby are doing fine.
Blessings,
Rolinda
Wife, Mother, Friend.