Babies may seem pretty helpless when you first bring them home, but in just a few months they'll be smiling and chuckling.

Two U.K. parents who welcomed their newborn into the world had no idea their lives would change just a few months later. Conor Cross, 33, told Newsweek that he and Meredith Bradley, 31, thought the ...

Infants are generally expected to double their birth weight by five months and triple it by 12 months.