Hay, I'd check with your pediatrician asap kasi kahit exclusive breastfeeding babies, 2 days without poop at that age isn't the usual pattern, most of them still poop daily or every other day talaga. Could be something minor like a feeding issue or position, but better safe than sorry, you know how it is. A few of us moms had similar concerns and our docs checked if baby was getting enough milk or if there were other things going on, so I really think a quick call to your pedia is the move here, ate.