It’s normal, farting is good- there poo frequency changes. They may poo every other day or every couple of days. As long as they’re not in pain or look constipated it’s normal to not poo daily.
Farting is good! Means gas is going around and out. Breastmilk means babies can go 5-6 days without pooping sometimes. My LO is almost 5 months now and only just started being a bit more regular but still doesn’t poop every day. When she was around 2-3 weeks old she went to just pooping once a week for a while!
i was doing the same thing & same thing happened to me, however he was abt 5/6 weeks but the dr said it can be normal as long as he’s not in any pain or fussy! it also can be from breast milk & formula as well apparently. he said it’s more common for combo fed babies