My baby birth weight was 2.8kg now 5months and the weight is 5.3kg. Is it normal? Exclusively breast feeding

A. Hai good evening !! Babies generally gains 400-900 gm per month by 5-6 months they double their birth weight . Baby weight 5.3 kg for 5th month is fine no need to worry about weight. As baby is 5th month ,continue exclusive breast milk, start semi solid foods from 6 month onwards once or twice a day rest of the day breast milk or formula milk.