My OB asked me if I had scheduled yet (umm, no, I"m only 15 wks). She said, you will need to do it soon, and I'd like to see you do it at 34 wks. Holy crap!! I'm going to be a house by then. Will I be comfortable doing it that late? I picture a bunch of pg women on their knees arching their backs up like a cat. So totally not happening here. WDYT?
Twin boys born too early at 17w4d and 18w2d in February 2010
Transabdominal cerclage placed September 2010
DS born at 35w1d in February 2011
Twin girls born at exactly 36w in February 2013

Re: Is 34 wks too late to take birthing classes?
I'm taking mine when I'll be almost 30 weeks. I wouldn't do it any later. Also, I'm taking a birthing class focused on multiples, which, if available in your area, you should try to take so that you are not wasting time on options/issues that won't be available to you.
True, but if you take it too early you likely won't remember much of it.
We're going to end up taking it at 35 weeks because we waited too long and now there's no room in the earlier class. Not ideal in my opinion, for the same reason as you stated...I'll be the size of a barn by then and probably won't want to be going anywhere. But it appears it's our last option.
Mine was multiple sessions, one day a week. So we did it weeks 28-32. I had the babies at 34w.
Twin boys born too early at 17w4d and 18w2d in February 2010
Transabdominal cerclage placed September 2010
DS born at 35w1d in February 2011
Twin girls born at exactly 36w in February 2013
After 2 rounds of IVF & 2 rounds of FET, we were blessed with identical twin girls!