Ay, ganyan talaga ang adjustment period, mommy! When we switched my lo from S26 Gold to NAN Infinipro HW din, medyo matagal din ang poop schedule niya for the first week or two, sometimes 5-6 hours, sometimes even longer, kasi different ang formula at iba ang tummy response, pero kung normal ang consistency (hindi liquid, hindi hard) at hindi siya uncomfortable, it's usually okay lang. Pero since nag-start lang kayo with the new formula at gusto mong ma-confirm na okay talaga ang adjustment niya, I'd really suggest bringing it up sa pedia just to be sure, para ma-rule out kung may milk protein sensitivity pa rin o kung ito talaga ay normal transition lang, especially since she was having pooping issues with S26 Gold.