It seems to be a common theme among exclusively breastfeeding mothers that they’re shocked when one of them gets pregnant. Exclusive breastfeeding is supposed to be a natural form of birth control isn’t it? Not quite – turns out there are two ways to breastfeed exclusively. There is the cultural way and there is the ecological way. Only the ecological way naturally suppresses fertility until baby is weaned. What is the difference? Breastfeeding and Natural Child Spacing by Sh