0-3 month outfits

Petite

When my son was born, he was 6 pounds 3 ounces. At his one month check up Friday, he was 9 pounds 6 ounces. I still put him on newborn clothes because I HATE for his clothes to look too big. Is there a weight range for 0-3 months clothing?

I'm going to try to put a 0-3 month outfits on him when he wakes up. I just want to know how much your babies weighed when they outgrew newborn size clothing.