34 week update

Your baby now weighs about 5 pounds and is probably almost 18 inches long. His fat layers — which he'll need to regulate his body temperature once he's born — are filling him out, making him rounder. His central nervous system is still maturing and his lungs are well developed by now. If you've been nervous about going into preterm labor, you'll be happy to know that 99 percent of babies this age can survive outside the womb — and most have no major long-term problems related to prematurity.