Aimee's weight loss/gain

At Aimee's 1st doctor visit she was 4 days old and went from 7lbs 10oz and 18 1/2 inches long to only 7lbs and 19 inches long. Her second visit was today, 2 weeks 4 days, and she now weighs 8lbs 12oz and is 20 1/4 inches. She also had her 1st shot.