didn't read all the posts
but i occasionally chime in on this forum as the poster child for lactational amenorrhea (sp?) paranoia.
my first was born at home, never put down at ALL, slept with me, nursed for food, comfort, fun, all of it. i took here EVERYWHERE. i was the model MDC mom in just about every day.
my then partner and i played around a few times during those early months, and also 'used' the 'pull and pray' method.
somehow i ended up with another baby 345 days after the first one was born. so, the .1 percent of people or whatever, they are real people, and i'm one of them. i could still kick myself.
so, i always advise a LOT of caution, i just think everyone's body is different, and you don't know what you've got going on for sure. even with tandem nursing two kids under 2, i was bleeding again the day my second turned seven months old. i don't know why i'm so fertile, i would love to read a book that discusses those ideas.