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  2. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    Gestational age. In obstetrics, gestational age is a measure of the age of a pregnancy taken from the beginning of the woman's last menstrual period (LMP), [1] or the corresponding age of the gestation as estimated by a more accurate method, if available. Such methods include adding 14 days to a known duration since fertilization (as is ...

  3. Pregnancy - Wikipedia

    en.wikipedia.org/wiki/Pregnancy

    The third trimester is defined as starting, between the beginning of week 28 (27 weeks + 0 days of GA) or beginning of week 29 (28 weeks + 0 days of GA). It lasts until childbirth . Timeline of pregnancy, including (from top to bottom): Trimesters, embryo/fetus development, gestational age in weeks and months, viability and maturity stages

  4. Nuchal scan - Wikipedia

    en.wikipedia.org/wiki/Nuchal_scan

    Purpose. Used to screen for abnormalities in a developing fetus. A nuchal scan or nuchal translucency ( NT) scan / procedure is a sonographic prenatal screening scan ( ultrasound) to detect chromosomal abnormalities in a fetus, though altered extracellular matrix composition and limited lymphatic drainage can also be detected. [1]

  5. A week-by-week guide to common pregnancy symptoms - AOL

    www.aol.com/week-week-guide-common-pregnancy...

    Here's a guide to pregnancy stages and symptoms of pregnancy week by week: First Trimester Pregnancy Symptoms. 1-3 weeks pregnancy (TODAY illustration) ... Pregnancy Symptoms Week 40.

  6. Fundal height - Wikipedia

    en.wikipedia.org/wiki/Fundal_height

    Fundal height, or McDonald's rule, is a measure of the size of the uterus used to assess fetal growth and development during pregnancy. It is measured from the top of the mother's uterus to the top of the mother's pubic symphysis. Fundal height, when expressed in centimeters, roughly corresponds to gestational age in weeks between 16 and 36 ...

  7. Gestation - Wikipedia

    en.wikipedia.org/wiki/Gestation

    The first trimester is from the last menstrual period through the 13th week, the second trimester is 14th–28/29th week, and the third trimester is 29/30th–42nd week. Birth normally occurs at a gestational age of about 40 weeks, though it is common for births to occur from 37 to 42 weeks.

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