Hello my daughter birth weight was 3.7kgs Now at 2.5 months her weight is around 5kgs which is less as per growth chart should I additionally add formula milk too? is there a problem should I consult dr.?

A. ideally babies will gain per month around 500-700g after birth.. and should be double the birth weight at around 4-6months and three times the birth weight at completion of one year.. exclusively breast feeding is recommended till baby complete six months..