Eh normal je, lagi-lagi kalau nyusu campur, formula-fed babies memang tend to poop less frequently compared to breastfed babies, so 2 hari sekali is actually quite common. A few of my mum friends pun sama, baby dorang berak 2-3 hari sekali pun okay je as long as the poop is soft and the baby seems comfortable. But if suddenly the poop becomes hard, or baby seems uncomfortable or bloated, boleh check with the pediatrician just to be safe, better to ask than worry, kan?