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  2. Menstrual cycle - Wikipedia

    en.wikipedia.org/wiki/Menstrual_cycle

    Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...

  3. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.

  4. Menstruation - Wikipedia

    en.wikipedia.org/wiki/Menstruation

    The first day of menstrual bleeding is the date used for the last menstrual period (LMP). The typical length of time between the first day of one period and the first day of the next is 21 to 45 days in young women, and 21 to 35 days in adults. [2] [3] The average length is 28 days; one study estimated it at 29.3 days. [10]

  5. Why do doctors always ask about your last menstrual period ...

    www.aol.com/lifestyle/why-doctors-always-ask...

    Knowing the first day of a woman’s last menstrual period is useful in other ways. Dr. Arlene Go, an ob-gyn and specialist ... The two-ingredient dinner I've made three times in the past week. News.

  6. Timeline of human prenatal development - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_human_prenatal...

    Gestational age: 5 weeks and 0 days until 5 weeks and 6 days old. 36–42 days from last menstruation. Embryonic age: Week nr 4. 3 weeks old. 22–28 days from fertilization. The embryo measures 4 mm (1 ⁄ 8 in) in length and begins to curve into a C shape. The heart bulges, further develops, and begins to beat in a regular rhythm.

  7. Postpartum period - Wikipedia

    en.wikipedia.org/wiki/Postpartum_period

    The postpartum period can be divided into three distinct stages; the initial or acute phase, 8–19 hours after childbirth; subacute postpartum period, which lasts two to six weeks, and the delayed postpartum period, which can last up to six months. [5] In the subacute postpartum period, 87% to 94% of women report at least one health problem.

  8. Irregular menstruation - Wikipedia

    en.wikipedia.org/wiki/Irregular_menstruation

    Oligomenorrhea generally refers to infrequent menstruation, More strictly, it is menstrual periods occurring at intervals of greater than 35 days, with only four to nine periods in a year. [8] Menstrual periods should have been regularly established before the development of infrequent flow and often (but not always) involves irregular intervals.

  9. Boeing posts $3.8 billion loss and has lost more than $35 ...

    www.aol.com/news/boeing-posts-3-8-billion...

    The numbers Boeing released are in line with what the company pre-reported last week, including nearly $3 billion worth of charges in the period due to the labor stoppage, job cuts and problems ...

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