He's almost 8 weeks old now and I have no idea how much he weighs. He started off slow - didn't gain any weight the first 3 weeks and then he took off. I had him weighed last time at 5 weeks old and he was 10lbs, 2 oz (8.15 at birth) and now I would guess he's about 12-13lbs. He's almost outgrown size 1 diapers! His 2 month WBC is next week so I'll find out how much he weighs then.
DD was born at 7 lbs even. By the next day, she was down to 6 lbs., 12 oz. By 1 w, she had surpassed her birth weight. At 4 w she was 8 lbs., 11 oz. When last weighed, at 6 w, 6 d, she was 10 lbs., 11 oz. (with clothes on...But remember, cloth dipes weigh something).
Kaia is 15 wks and 2 days old and weighs 11 pounds. She was 5lbs 10oz when she was born though (39 weeks and 4 days), so she is probably smaller then the 'average' baby - most people estimate that she is younger then she is.
Travis is 3 1/2months old and 11lbs 7ounces, he was 6lbs 14oz at birth. He's on the smallish side I guess, but my dd was 12lbs 6ounces at 6 months and my first ds was 17lbs at 4 months, so I only have the two extremes to compare it to, he's huge compared to his sister and tiny compared to his brother.