Popsugar Family Parenting Signs Your Baby Is No Longer a Newborn 16 Signs You've Made It Through the Worst of the Newborn Phase December 5, 2019 by Denise Stirk View On One Page Photo 14 of 15 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 You're Introducing Solid Foods Some folks start their babes on solid foods as early as 4 months, and this is a big step away from newborn-ness and into full-on baby mode. Previous Next Start Slideshow ParentingNewbornFamily Self-Care