Normal or not

Hello mga mummies like me....1st time mum here....normal lamg po ba sa baby na approaching 4 months na hindi makapopo 4days pinakamatagal..makakapopo lang sya kapag nasundot ng sabon ng pwet nya..pero yung popo nya..is like ng popo nya normaly.... If not, can you tell me what to do.... I saw in tiktok app the calm tummies(tiny buds) is good for baby who cant poop...do you know about this? Salamat po ng madami...#1stimemom