Baby is in 1st percentile for weight

Lisa

Our doctor told us to make sure she gets 32oz of food each day. 30oz formula. And then we give her 2oz of baby food (carrots, squash, bananas) it’s been almost a month giving her more food and she’s still in the 1st percentile. Does anyone have any suggestions for helping her gain weight? She does gain about 1 pound a month and she’s such a happy baby. But then we go to the doctor and hear 1st percentile and get discouraged.