My RE isn't an OB and I was planning on using a CPM at a birth center if I had a singleton (one of the downsides to our new midwifery licensure bill is no multiples, but triplets are out of my comfort range for out of hospital birth anyway). I'm a birth doula and was familiar with most of the docs/mw in town but none of my favorites would take triplets, they want them all sent to a peri/MFM. I called every single OB office in my area and finally found an OB who had done vaginal triplet birth before (albeit not in many years) and would do it again in the right circumstances. Woohoo! Dh and i interviewed him and another who said he "might" consider it and it was no contest. I wasn't familiar with Dr K myself, but asked around my doula buddies and they loved him so that's always a good sign.
So I'm doing concurrent care with Dr K and a peri at the same hospital. I have my cervical length u/s and growth scans at the peri and she consults on the "high-risk" stuff, but Dr K is the main doc and will be attending the birth. The peri is totally against vaginal birth but she only does consulting anyway so its not a big deal. Dr K wants me to be moved to the OR for pushing (my preference anyway) and wants me to have a low spinal block just before or right after the first baby is born. This is in case I were to need a breech extraction with B or C, he wants the pelvic floor relaxed (and I'm not excited about the idea of a breech extraction without anesthesia anyway!). He wants me to be past 32 weeks to plan a vaginal birth since there's a higher likelihood of needing a breech extraction and before 32 weeks the babies are just too delicate for that. Those are really the only things he cares about though, everything else is up to me. He's fine with leaving the cord unclamped for several minutes, even in the case of a cesarean. He's fine wtih my pushing on my side. He's fine with me having both of my doulas in the OR with us and with us keeping the placentas. As long as the babies are old enough and doing okay, he plans to put each baby on my belly as they're born while the cord pulses.
I think the success of planning a vaginal birth with triplets is sooo dependent on finding a doc who is comfortable with the idea and who has confidence in their ability to deal with anything that may come up without going to cesarean unless its actually needed. It might take quite a bit of searching to find the right fit, but its worth it if you can find someone. I feel so good knowing that if I end up with a cesarean birth it would be because its what is medically best for me and my babies, not because it freaked out my care provider.
I was working as a birth doula and childbirth educator and teaching cloth diapering classes before I got pg, but I stopped attending births to do IVF and stopped teaching Hypnobabies before 20 weeks. Its a good thing, because there's no way I could be working right now, even a desk job. Just too uncomfortable and I have to lay down too much.
So far so good with me and the babies, everyone is healthy. I have a LOT of cntx during my singleton pg and that hasn't changed this time. Its probably normal bh cntx, but I started a low dose of nifedipene (procardia) last week to reduce the amount that I'm having just in case they would cause cervical change down the road. I'm not technically on bedrest, but its getting awfully hard to do much, I'm basically doing the bare minimum of taking care of my 2yo and 4yo, we're watching too much TV and eating too many pb and j's but its what I've got to do right now and its not going to last forever
Sorry to write a book, but I know when I was newly pg with the trio, info was my comfort, I felt so much better hearing other people's experiences. It makes it all seem more doable hearing how someone else was faring.
Oh, here's the links to the studies I've found about vaginal birth with triplets. I figured I'd post them here in case anyone else is interested too. One or two of the studies even includes quads and quints!
http://www.ncbi.nlm.nih.gov/pubmed/8053876
http://www.ncbi.nlm.nih.gov/pubmed/9776599
http://www.ncbi.nlm.nih.gov/pubmed/15144337
http://www.ncbi.nlm.nih.gov/pubmed/9790375
http://www.ncbi.nlm.nih.gov/pubmed/11251500
http://www.ncbi.nlm.nih.gov/pubmed/9822488
http://www.ncbi.nlm.nih.gov/pubmed/3066096
http://www.ncbi.nlm.nih.gov/pubmed/7243094
http://www.ncbi.nlm.nih.gov/pubmed/1326209
and a couple of triplet birth stories:
http://www.ivillage.co.uk/vaginal-triplet-birth/81859
http://doulamomma.wordpress.com/2010/01/08/triplet-vbac-in-ga-with-dr-tate/
I hope that helps!
Morgan