Sophie had her 4 month well-baby checkup Friday afternoon. Here are her stats - 15.4 lbs and 26 3/4 inches tall. She is still in the 90% for her weight and over 95% for her height. She's doing all of the things she should be and more.
At four months old, babies usually range from 23 inches long and 11 pounds (10th percentile) to 25.5 inches long and 15.75 pounds (90th percentile).
Your baby may be able to play alone with her toys for up to 15 minutes. The ability to entertain herself for longer and longer periods is a big milestone - and one for which you'll no doubt rejoice! You'll also begin hearing her happily cooing away with different toys in an attempt to copy the voice inflection and rhythm that she hears from you and others. Sometimes your baby may hold a sound while running it through an array of different pitches and volumes.