my baby is one month old and not doing potty since 4 days,and once I am giving formula milk she is crying

A. Well constipation is completely normal in this age whether it is formula or breastfeeding actually kids can go without pooping for number of days at a stretch in this age but if your child is comfortable showing no sign of discomfort it’s alright and the child can cry on both breast and formula milk it’s not an issue but if you feel that it’s very difficult for the child to digest the milk and check with your doctor