NFI; they insisted it was standard and refused to listen to complaints about the reaction. postpartum hormones are already fucked up and this couldn't have helped. Among other things, it made her skin so sensitive she found it hard to wear clothing, and nursing was torture. She still had periods too; so it probably wasn't actually functioning as a fertility blocker.
She's one of those lucky people for whom no drug seems to work as advertised, all she gets are the side effects and usually much worse than the text of the drug warnings describes.
My conclusion was that since the doctor showed up after the delivery, he had to find something to do to justify billing. I was out of the room watching the baby at that moment because we didn't trust nobody there at that point.