Just stepped onto the scales with and without DS to check his weight as he's now 7 weeks and hasn't been weighed since he was 4 weeks. He's 12.5 lbs. Looking on the chart this seems to put him at the 75th centile which in itself seems okay - but he was 4 weeks early and 5lb 13 - so he's put on over 6lbs in his 7 weeks of life. Is this normal?