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  2. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    Gestational age is contrasted with fertilization age, which takes the date of fertilization as the start date of gestation. There are different approaches to defining the start of a pregnancy. This definition is unusual in that it describes women as becoming "pregnant" about two weeks before they even had sex.

  3. Age and female fertility - Wikipedia

    en.wikipedia.org/wiki/Age_and_female_fertility

    A study of a population of French women from 1670 and 1789 shows that those who married at age 20–24 had 7.0 children on average and 3.7% remained childless. Women who married at age 25–29 years had a mean of 5.7 children and 5.0% remained childless. Women who married at 30–34 years had a mean of 4.0 children and 8.2% remained childless. [20]

  4. Pregnancy over age 50 - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_over_age_50

    Menopause typically occurs between 44 and 58 years of age. [8] DNA testing is rarely carried out to confirm claims of maternity at advanced ages, but in one large study, among 12,549 African and Middle Eastern immigrant mothers, confirmed by DNA testing, only two mothers were found to be older than fifty; the oldest mother being 52.1 years at conception (and the youngest mother 10.7 years old).

  5. Advanced maternal age - Wikipedia

    en.wikipedia.org/wiki/Advanced_maternal_age

    In the US, the average age at which women bore their first child advanced from 21.4 years old in 1970 [11] to 26.9 in 2018. [4]The German Federal Institute for Population Research claimed in 2015 the percentage for women with an age of at least 35 giving birth to a child was 25.9%.

  6. Pregnancy - Wikipedia

    en.wikipedia.org/wiki/Pregnancy

    Women benefit from education to encourage a balanced energy and protein intake during pregnancy. [93] Some women may need professional medical advice if their diet is affected by medical conditions, food allergies, or specific religious/ ethical beliefs. [94]

  7. Prenatal development - Wikipedia

    en.wikipedia.org/wiki/Prenatal_development

    The term Advanced maternal age is used to describe women who are over 35 during pregnancy. [29] [30] Women who give birth over the age of 35 are more likely to experience complications ranging from preterm birth [30] [29] [31] and delivery by Caesarean section, [30] [31] to an increased risk of giving birth to a child with chromosomal ...

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