Ay don't worry, green poop sa babies at toddlers is usually totally normal, a lot of us mommies panic rin the first time we see it! Green stool can happen dahil sa formula, kung mabilis ang digestion, or sometimes basta normal lang talaga, pero since it's your first time and you're concerned, mas peace of mind mo if you check in with your pedia para i-rule out anything else, lalo na if may iba pang signs like diarrhea or baby seems uncomfortable. Mostly it's nothing serious though, but doctors would know best para sure na!