It's estimated that a typical baby will put on something like 13-ounces a month from birth to 12 months. And it's not just ...

Arie Luyendyk Jr. and wife Lauren Burnham shared the sex of their fourth and final baby. The expecting couple are already parents to 5-year-old daughter Alessi and 3-year-old twins Senna and Lux.

This is one of those moments you never forget. After welcoming their baby girl, this proud mom was counting down the minutes ...