How is your baby measuring?

I feel like all I see is people posting that their baby is measuring big, even weeks ahead. Is anyone measuring slightly small like me? He was 3 lbs 13 oz in my 31st week which they said was 38th percentile :( Ever since The beginning, he has been a few days behind but he always measures within a week of his due date but it's really stressing me out! Doc isn't concerned but still! Anyone else in the same boat?