Pixie thats interesting about the diaphram, i actually went to a family planning clinic after DS1 as i wanted one, and she completely talked me out of it and i somehow left with a script for the mini pill as i was BF. I took it and he wouldn't feed, so i stopped, awful pill. She told me at best its 94% effective (the diaphram) and said it rarely is even that much because the vagina needs to be the perfect shape. It was very disappointing!

I think natural fertility planning is great if you have the skill to do it. You can train with a professional actually to learn to correctly predict the signs.