I came off the pill in december 03. I was in QLD for most of that cycle so DH and I didn't get the chance to BD very often but on my second cycle off the pill I got a BFP.
My sister decided to stop taking the pill and a about a week later she was feeling a bit off so she went to see her Dr who told her that she wasn't sick - just pregnant.
I think that in many cases the pill doesn't cause issues - it just masks them and when people stop taking it and they notice the problems they naturaly blame the pill.