beau - i too lost a hell of alot of blood and also had to have a transfusion.... i am DEFINITELY 200% opting for hypnobirthing next time.... i am 5 foot 2, but my mum is barely 5 foot and birthed us three kids with no issues...

just my opinion but i would be very wary of anyone, ob or not, doubting your ability to birth your baby based on how petite you are and a scan... scans are notorious for being wrong, actually in my experience are completely unreliable in that sense... my doctor was the same, doubted my ability to birth what he called my 'big' baby (she ended up being 8 pounds 7, not that big at all really) and i was booked in to have a c-section, just happened to go into labour before the date.... it was HIM who planted the seed of doubt in my mind which was the catalyst in my awful traumatic experience...

just my opinion but if i had of trusted my body more, and listened to my doctor less, i am sure i would have had a much better outcome... the thing about birth is, no two births are alike, there are all sorts of variables that impact on how things go, so i fail to see how anyone can predict the future, no matter how many births they have seen.... its just not something that is black and white like that.