my baby is 2 months 10 days weighing 4.4kg birth weight was 2.88 kg . He does not look chubby. Is it normal?? when will he start looking chubby??

A. hello baby gaining a minimum of six hundred grams to 800 grams per month then it is a good weight gain and is absolutely nothing to worry about and baby weight gain looks good so not a problem and any concern then check with your doctor and incase the bm is not sufficient then give baby infant formula milk stage 1 like Nan Pro stage 1 or similac stage 1 using a bpa free bottle like Babyhug