Gain weight

So baby is formula fed,he was born with 9 lb 13 oz. Next check up he was 11 lb and now he is 14 lb and 4.8 oz.He eats 4 oz every 2-2,5 hours(2 month app).And doc told me he is little bit overweight 😣 nothing I should be worried about but now I feel bad 😭😭 and he is almost 8 weeks