Transition of milk. No poo.

hi, I would say wait abt 4-5 days to deduce that it's constipation. cuz it could just be your baby's body adjusting to this new formula milk. you can also try applying minyak telon on Lo's tummy during every diaper change and notice if stomach is hard (this is a sign of constipation). also can give a warm shower while adding some pressure onto lower tummy and see if baby poos... if really constipation then maybe you can choose to change to another brand.