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  2. Age and female fertility - Wikipedia

    en.wikipedia.org/wiki/Age_and_female_fertility

    The average age of a girl's first period is 12 to 13 (12.5 years in the United States, [6] 12.72 in Canada, [7] 12.9 in the UK [8]) but, in postmenarchal girls, about 80% of the cycles are anovulatory in the first year after menarche, which declines to 50% in the third year, and to 10% by the sixth. [9]

  3. Ovulation - Wikipedia

    en.wikipedia.org/wiki/Ovulation

    Ovulation is an important part of the menstrual cycle in female vertebrates where the egg cells are released from the ovaries as part of the ovarian cycle. In female humans ovulation typically occurs near the midpoint in the menstrual cycle and after the follicular phase. Ovulation is stimulated by an increase in luteinizing hormone (LH).

  4. Fertility awareness - Wikipedia

    en.wikipedia.org/wiki/Fertility_awareness

    Ovulation predictor kits can detect imminent ovulation from the concentration of luteinizing hormone (LH) in a woman's urine. A positive ovulation predictor kit result is usually followed by ovulation within 12–36 hours. Saliva microscopes, when correctly used, can detect ferning structures in the saliva that precede ovulation.

  5. What the age you got your period says about you - AOL

    www.aol.com/article/lifestyle/2016/12/07/what...

    Getting your period on an extreme end—early or late—can also increase your odds of having heart disease later in life, according to a study published last year in the journal Circulation. For ...

  6. Human fertilization - Wikipedia

    en.wikipedia.org/wiki/Human_fertilization

    There is also considerable variability in this interval, with a 95% prediction interval of the ovulation of 9 to 20 days after menstruation even for an average woman who has a mean LMP-to-ovulation time of 14.6. [32] In a reference group representing all women, the 95% prediction interval of the LMP-to-ovulation is 8.2 to 20.5 days. [31]

  7. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    Without ovulation, she may enter interestrus, which is the combined stages of diestrus and anestrus, before reentering estrus. With the induction of ovulation, the female becomes pregnant or undergoes a non-pregnant luteal phase, also known as pseudopregnancy. Cats are polyestrous but experience a seasonal anestrus in autumn and late winter. [19]

  8. Menarche - Wikipedia

    en.wikipedia.org/wiki/Menarche

    On the other hand, not every girl follows the typical pattern, and some girls ovulate before the first menstruation. Although unlikely, it is possible for a girl who has engaged in sexual intercourse shortly before her menarche to conceive and become pregnant, which would delay her menarche until after the end of the pregnancy. This goes ...

  9. Ovulation induction - Wikipedia

    en.wikipedia.org/wiki/Ovulation_induction

    Weight loss results in significant improvement in pregnancy and ovulation rates in such patients. [7] In vitro fertilization, including controlled ovarian hyperstimulation. In vitro maturation is letting ovarian follicles mature in vitro, and this technique can potentially be an alternative both to anovulation reversal and oocyte release ...