Labor that starts early before 37 weeks of pregnancy is referred to as preterm or premature labor. Fetal development during a typical pregnancy lasts roughly 40 weeks. 37 weeks is considered “at term” for a pregnancy; anything less than that is considered preterm. Your body goes through labor as a way to get ready for childbirth. The tightening of uterine muscles during contractions and the rupture of membranes, or breaking of the water, are common indicators of labor. Your cervix, the lowest point of your uterus, may open (dilate) earlier than usual if you are going through premature labor.

Premature birth, or being born early, can be caused by preterm labor. To give the fetus additional time to grow and develop inside the uterus, labor can frequently be stopped. Premature labor can be prevented by bed rest, intravenous (in your vein) fluids, and uterine relaxants.

Sometimes, before the fetus reaches term, childbirth is induced. This usually occurs when the delivery is necessary for a medical reason. Fetal growth limitation, placental abruption, and preeclampsia. High blood pressure during pregnancy is an example.