Maternity Cycle and Prematurity
Maternal and Child HealthPreventive Medicine in Obstetrics, Paediatrics and Geriatrics
Maternity Cycle and Prematurity
Stages in the maternity cycle:
I Fertilization
II Antenatal (or prenatal) period
III Intra-natal period
IV Postnatal period
V Inter-conceptional period
Intra- uterine stages:
a. Ovum – 0 to 14 days
b. Embryo – 14 days to 9 weeks
c. Foetus – 9 weeks to birth
Premature infant – Born between 28 to 37 completed weeks of gestation
- Extremely preterm – <28 weeks
- Very preterm 28 – 32 weeks
- Moderate to late preterm – between 32 to 37 weeks
Full term - >37 weeks of gestation

why MCH: Why Special Health Services for Mother and Child (MCH)?
Reference:
Preventive Medicine in Obstetrics, Pediatrics and Geriatrics; Park’s Textbook of Preventive and Social Medicine, 23rd ed.