I brought some articles I'd found as a result of a similar post I'd made on this very board (there's a 2002 article from
Pediatrics, for instance) and told the NP that I'd like to discuss it at my next appointment. When I got to the next appointment, the OB had read everything. He said he has no problem with delayed cord clamping, it's simply seldom requested (so, he doesn't offer it up as an option but will do it if requested). I had already talked to the Ped who had no concerns about it.
He told me to make sure it was in my Birth Plan and that I told the nurses about it. And that, he wanted me to know that if there were an emergency and he was concerned about my or baby's safety, he might need to clamp the cord.
No problem at the hospital. The nurses never read the Birth Plan (I labored faster than the nurses thought I would

) - HE was the one who stopped them from giving me Pitocin while we were waiting for my placenta to deliver and the cord to quit pulsing. It was great, it was like he was our watchdog too.
And, he asked me the next day whether I was happy with this birth (I was happy with the previous one, also with him, I just hadn't known about delayed clamping at that point). I told him yes, we are happy. I really LOVE my OB. He's great with me wanting (and doing) NCB, he's pro-bf, pro-cosleeping, no formula samples, etc. When we had our m/c, and Ina was 2 years old, he told me to just make sure we kept nursing as that would help things normalize most quickly.
I think one (largest) key is to have an HCP who respects you and is collaborative in approach, not on a power trip. And then secondarily, provide them with good information and research and ask questions about what they think. If they're in your corner, even if the hospital expects instanct ccing, the doctor or midwife will be able to get what YOU want done.
