Thanks so much ladies! The student and I were just about to discuss the "other" side when we were interrupted, so it's good to hear from you. I had a feeling it was something like that - that the risk was pretty low to start with, because I know I've read quite a number of birth stories with a physiological third stage, and no issues.
If I did have trouble with bleeding, would it be much less effective to begin treatment once the bleeding has started? Or is the outcome generally the same, whether you start bleeding and stop it with oxytocin, or have the oxytocin before the bleeding starts? (Does that make sense? My brain is not working so well these days, and what I want to say doesn't always come out so well on paper! )
Thanks again!