Pregnancy Health and Safety (Prenatal Care)
Ultrasounds
Fetal Development

How big is a 14 week fetus?

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12/05/2009

Ineresting question. I presume you mean human fetus. At 14 weeks the human fetus is leaving its first trimester.

It would nominally be about the length of an adult index finger (3.5 inches) and about 1-2 ounces. It would have discernible eyes, fingers, toes, nose ...