Gestational Age

Gestational age is age of a and Mortality .

The events of Embryo logic and fetal development usually occur at known gestational ages. This gestational timing of a toxin exposure or infection can be used to predict the potential consequences to the fetus.

Calculations of gestational age from LMP are sometimes incorrect due to normal varation from the average ovulation date. The gestational age of an individual infant can be more accurately estimated from:
# The Mother 's knowledge of the date of Sexual Intercourse .
# The mother's knowledge of Fertility Signs related to Ovulation . The needed observations are normally made by mothers who use Fertility Awareness methods to get pregnant.
# Examination of the newborn infant. In the twentieth century, doctors (especially Pediatrician s) were trained to recognize the physical changes occurring to the fetus in the latter half of pregnancy so that a maturational age could be estimated.
# An Obstetric Ultrasound during the pregnancy, whereby sizes of certain fetal body parts are measured.

The gestational age of children conceived by In Vitro Fertilization is known to the hour.

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Gestational Age