Ay, green poop tu common je dalam early months, terutama kalau breastfed, air susu pun ada greenish tint sometimes. But kalau consistently dark green or ada other signs macam baby lethargic or konstipasi, better check dengan pediatrician cepat-cepat lah, sebab sometimes boleh indicate something need attention like latching issue or infection. A few of my mum friends experienced this juga and doctor said it's usually nothing, tapi peace of mind tu important kan, especially first baby!