My baby is almost 5 months and was weighed last week at 14lbs. He is now in the 12th percentile for weight and at his 2 month check up he was in the 22nd percentile. Is that bad? The doctor said I should give him an extra ounce of formula with each feeding and see how he does. I really don't want to give him formula. I would prefer him to just be on breastmilk. Should I give him the formula? Or is there a way for me to increase my breastmilk? He doesn't seem malnourished or anything. He super happy, alert, and strong. Maybe he's just small. Any advice?