Oo normal lang yan, ate! Especially sa first few weeks, maraming babies ang nakakapag-poop after feeding dahil ang sucking reflex nila nag-trigger ng gastrocolic reflex, yan yung reflex na nag-stimulate sa bowel movement. A few of us moms noticed yan sa aming babies at first nag-alala kami din, but totally normal naman siya, especially since one week old pa lang ang baby mo. Just make sure nag-wet diapers din siya ng 6+ times a day para malaman mo na siya ay kumakain ng sapat, at kung may concerns ka about consistency ng poop or kung parang may pain, check with your pedia na lang to be sure.