Methods
Some countries count gestational age from fertilization instead of LMP. This method of counting is also known as fertilization age, embryonic age, fertilizational age or (intrauterine) developmental (IUD) age. This method is more prevalent in descriptions of prenatal development of the embryo or fetus. The LMP gestational age is usually greater by about two weeks. Also, pregnancy often is defined as beginning with implantation, which happens about three weeks after the LMP (see the beginning of pregnancy controversy).
Read more about this topic: Gestational Age
Famous quotes containing the word methods:
“The philosopher is in advance of his age even in the outward form of his life. He is not fed, sheltered, clothed, warmed, like his contemporaries. How can a man be a philosopher and not maintain his vital heat by better methods than other men?”
—Henry David Thoreau (18171862)
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“We are lonesome animals. We spend all our life trying to be less lonesome. One of our ancient methods is to tell a story begging the listener to sayand to feelYes, thats the way it is, or at least thats the way I feel it. Youre not as alone as you thought.”
—John Steinbeck (19021968)