Worried about his weight 😢

My son was born at 6 lbs 3 oz he dropped down to 5 lbs 11 oz I believe once we left the hospital and then was weighed at his one month appointment and weighed in at 7 lbs 6 oz. everyone seems to be having such large babies! Most people online were saying they had 10-12 lb babies at one month. He still seems so small, I worry I'm not feeding him enough so I tried to wake him and feed him at smaller intervals but he spits up so I know it's just too much for him. The doctor said he's doing great even though he's only in the 2nd percentile for weight but I'm just worried about my "not so chubby" baby. Anyone else have a small baby and they're going okay?