Beckoes - it is really hard isn't it, I had a PPH with #1 and was petrified it would happen again.
I am not sure why/how I haemorrhaged but regardless the hossy's policy was to put a cannular in - The MW's were unable to put the cannular in my hand when I was in labour, DD2 was post and I couldn't stay still for long enough.
They then proceeded to wait and assess before administering any injection - so I was able to avoid it. I got the feeling they were perhaps *supposed* to have given it to me but were more comfortable to wait and see if it was required. My delivery was so different to number 1 that I virtually danced around the birthing suite straight away!
Is there any chance of asking your Obs the probability of it happening and seeing if they are happy to be on standby if it is safe to do so??