because of this (well there were several things but this was at the top).
I found my next OB pretty much not by choice. He was the only OB in the immediate area that was a solo practitioner, delivered out of a particular hospital I wanted and also took my insurance (which isn't a common plan in my area). But as it turned out the gods were looking out for me because he is a high risk OB and completely 150% understood my situation and while he wasn't recommending that I remain on P4, he told me he had NO PROBLEM staying out of Dr. C-heck's way in that regard and that he would be completely fine with monitoring my P4. There was never a "discussion" or "negotiation" or "defense" needed. He simply was a compassionate doctor who understood I'd been through my own personal hell and he wasn't about to allow something so stupid as a $100 blood test get in the way of my sanity.
Here's my info I posted to Amy not too long before she gave birth.
FYI - Amy and I both [responsibly] stopped our P4 support before hitting 36 weeks. She and I both went into pre-term labor. Coincidence? Maybe. BUT - maybe not. I'd stay on the P4 support all the way through if I were you.