My daughter is 2 month old. she was born 3.600 g, now she weighs 5.300 g. is it normal? how much weight should an infant gain per month? thanx alot

Infant Weight Gain: Your daughter's birthweight, 3.6 Kg is at the 50th percentile which is average. Her 2 month weight is also at the 50th percentile or average. In the first month of life, infants gain about 30 grams per day. After 2 months of age, infants gain about 20 grams per day. Birth weight generally doubles by age 5 months and triples by age one year.

Weight: A child should double his weight at 5 months and triple his weight at one year. He should also grow approximately 10 inches

Weight is OK: Babies normally double their birth weight between 4 and 6 months, and triple their birth weight by One year of age.