Fetal Development Chart | Fetal Development | Pregnancy

fetal development chart

Developmental stage					Embryonic Stage						Fetal Stage
Gestational  Age (weeks)	1	2	3	4	5	6	7	8	9	10	11	12	13	14	20	40
Conceptual  Age  (weeks)	0	0	1	2	3	4	5	6	7	8	9	10	11	12	18	38
Developing Organ(s)
Central Nervous System
Heart
Ear
Eyes
Limbs
Lip
Palate
Teeth
External genitals

The red bars in the table  show the gestational age when different organ systems are most sensitive to major birth defects in that organ system. The pink bars show the gestational age when different organ systems are sensitive to functional defects and minor malformations.