Corticosteroids should also be considered in the following circumstances: At gestational age 34 weeks 0 days to 36 weeks 6 days if women are at risk of delivering within 7 days and no prior corticosteroids have been given (1) Starting at gestational age 23 weeks 0 days if there is a risk of preterm delivery within 7 days (1) Corticosteroids are contraindicated if there are signs of chorioamnionitis.