I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), FELLOWSHIP IN NEONATOLOGY ( Newborn and vaccination specialist )

Is baby on Breastfeeding or Top feeling

Its normal.

Greetings Yellow or mustard-colored stool with a seedy, grainy, or pasty texture is completely normal for a 7-day-old newborn. This appearance indicates healthy infant digestion, especially in breastfed babies where the "seeds" are simply harmless flecks of undigested milk fat and protein. Formula-fed infants also frequently pass yellow, tan, or light brown stools with a thicker, pasty, peanut-butter-like consistency. There is no underlying digestive problem as long as your baby is feeding eagerly, gaining weight, and staying well-hydrated.