Good morning! Possible talaga na adjustment period lang siya since it's only day 2, pero yung poop change na ganyan kaagal is worth watching, sometimes ang tummy niya ay nag-a-adjust sa bagong formula for a few days pa lang, pero kung it persists or may iba pang signs like rashes or discomfort, mas safe na i-check with her pedia agad para ma-confirm kung hiyang ba talaga sa NAN o kailangan mag-switch. Congrats din sa pregnancy, mama!