its a feeling for every mother to hv that breast milk is not sufficient, however if ur baby is gaining wt adequately (for this age abt 20g a day) passing urine for 6 to 8 times n healthy no need to worry, wud recommend to give breast milk for another 2months. if there problem in these then u can start top feeding, hw much when may require consulting the pediatrician
Next Steps
continue breastfeeding for 2months is recommended