Popsugar Parenting Pregnancy How Big Is My Baby? A Week-by-Week Fetus-Size Guide Based on Objects You Actually Know 8 June 2018 by Annie Gabillet View On One Page Photo 25 of 36 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 25 Week 29: a Loaf of Bread Your baby measures 15.2 inches this week, about the length of a good old loaf of store-bought bread. Previous Next Start Slideshow Pregnancy