Nelle I chatted to my OB at my 6 week checkup he told me that if I were to have another bub I would not nescessarily have another PPH.
There is a 1 in 20 chance of any PG having a PPH and having one previously doesn't mean you WILL have one again.

It's a scary thing to go through indeed and I understand why you'd be apprehensive about it

I was terrified of another retained placenta after I had Angus but have since had 2 bubs and the placentas fell out no probs. The PPH and retained placenta are unrelated happenings also.

My labours have also gotten a tad faster but I just knew when it was time for the last two.
3 years 2 months between A & C and 2 years 3 months between C & R.