I've heard before that your risk for post-partum haemorrhage increases when you've had a number of children. Can someone give me a clue as to when the odds start going up? I'm expecting number five, and planning a homebirth. I do not plan to change my mind over this, but I would like to know what the probability of PPH is. I've never had any trouble before with post-partum bleeding, nor had a long labour or a big baby. Anyone have some information on this?