Whatvis the regular weight growth for a baby from 0-6 months?As baby decrease in weight for first few days,is it normal for a healthy baby to have same weight as first day after one month?

A. hi dear The first month of life was a period of rapid growth. Your baby will gain about 1 to 1½ inches (2.5 to 3.8 centimeters) in length this month and about 2 more pounds (907 grams) in weight. These are just averages — your baby may grow somewhat faster or slower.