A baby is delivered before the 37th week of pregnancy.
A premature birth is described as a baby being delivered before the 37th week of pregnancy.
The situation that describes a premature birth is when a baby is delivered before the 37th week of pregnancy. Preterm birth, or premature birth, occurs when a baby is born before the completion of the normal 40 weeks of pregnancy. To determine if a birth is premature or preterm, you need to know the gestational age, which is the number of weeks since the first day of the mother's last menstrual period. If a baby is born before 37 completed weeks of gestation, it is considered a premature birth.