< Back to All Videos thirdAGE > What is Preterm Labor? Up Next... 10 Pregnancy and Exercise Pregnancy and Exercise Exercise and Your BabyΓÇÖs Developing Brain Cord Blood Loading the player ... Pregnancy What is Preterm Labor? Preterm labor is when your body starts getting ready for birth too early in your pregnancy. Learn all the need-to-know facts here to keep you and baby healthy. Related Videos Pregnancy and Exercise Exercise and Your BabyΓÇÖs Developing Brain Cord Blood Multiple Pregnancies 101