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 4 of 36 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Week 8: a Gummy Bear At 0.63 inches your baby's length is about the same as a gummy bear's height. Don't you just want to squeeze them! Previous Next Start Slideshow Pregnancy