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  2. Calendar-based contraceptive methods - Wikipedia

    en.wikipedia.org/wiki/Calendar-based...

    The World Health Organization considers the rhythm method to be a specific type of calendar-based method, and calendar-based methods to be only one form of fertility awareness. [2] More effective than calendar-based methods, systems of fertility awareness that track basal body temperature, cervical mucus, or both, are known as symptoms-based ...

  3. Estimated date of delivery - Wikipedia

    en.wikipedia.org/wiki/Estimated_date_of_delivery

    The estimated date of delivery (EDD), also known as expected date of confinement, [1] and estimated due date or simply due date, is a term describing the estimated delivery date for a pregnant woman. [2] Normal pregnancies last between 38 and 42 weeks. [3] Children are delivered on their expected due date about 4% of the time. [4]

  4. Jean Purdy - Wikipedia

    en.wikipedia.org/wiki/Jean_Purdy

    [12] [6] In 2015, Professor Andrew Steptoe of the Royal Society of Biology (Patrick Steptoe's son) unveiled a blue plaque that acknowledged the three people involved in developing IVF. [10] [18] [19] In 2018, to mark the 40th anniversary of IVF, Bourn Hall unveiled a memorial to Jean Purdy, the "world's first IVF nurse and embryologist. Co ...

  5. Gestational age - Wikipedia

    en.wikipedia.org/wiki/Gestational_age

    An estimated due date is given by Naegele's rule. According to the WHO, a preterm birth is defined as "babies born alive before 37 weeks of pregnancy are completed." [ 20 ] According to this classification, there are three sub-categories of preterm birth, based on gestational age: extremely preterm (fewer than 28 weeks), very preterm (28 to 32 ...

  6. Sex selection - Wikipedia

    en.wikipedia.org/wiki/Sex_selection

    Chinese Gender Calendar was buried in an imperial mausoleum with a history of over 300 years. It was calculated and deduced by the ancient Chinese based on Yin-Yang, Five Elements, Eight Diagrams and time. [59] This calendar is a simple chart who matches the day of conception of the future child with the age of the mother at the day of conception.

  7. Assisted reproductive technology - Wikipedia

    en.wikipedia.org/wiki/Assisted_reproductive...

    Thus, if a clomiphene treatment has a chance to establish a pregnancy in 8% of cycles and costs $780, the expected cost is $9,400 to establish a pregnancy, compared to an IVF cycle (cycle fecundity 40%) with a corresponding expected cost of $46,800 ($18,700 × 40%). [citation needed]

  8. Birth control - Wikipedia

    en.wikipedia.org/wiki/Birth_control

    Birth control, also known as contraception, anticonception, and fertility control, is the use of methods or devices to prevent pregnancy. [1] [2] Birth control has been used since ancient times, but effective and safe methods of birth control only became available in the 20th century. [3]

  9. Vasectomy reversal - Wikipedia

    en.wikipedia.org/wiki/Vasectomy_reversal

    Pregnancy rates range widely in published series, with a large study in 1991 observing the best outcome of 76% pregnancy success rate with vasectomy reversals performed within 3 years or less of the original vasectomy, dropping to 53% for reversals 3–8 years out from the vasectomy, 44% for reversals 9–14 years out from the vasectomy, and 30 ...

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