Definition
- Preterm:
- Pregnancy before 37 weeks of gestation
- Early term:
- Pregnancy between 37 weeks - 39 weeks.
- Full term:
- Pregnancy between 39 weeks - 41 weeks.
- 1st trimester
- 1–12 weeks
- 2nd trimester
- 13–28 weeks
- 3rd trimester
- 29–40 weeks
- Late term:
- Pregnancy between 41 weeks - 42 weeks.
- Post term:
- Pregnancy between 42 weeks - delivery.