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  2. Beginning of pregnancy controversy - Wikipedia

    en.wikipedia.org/wiki/Beginning_of_pregnancy...

    A protein called early pregnancy factor (EPF) is detectable in a woman's blood within 48 hours of ovulation if fertilization has occurred. However, testing for EPF is time-consuming and expensive; most early pregnancy tests detect human chorionic gonadotropin (hCG), a hormone that is not secreted until after implantation. Defining pregnancy as ...

  3. Infertility - Wikipedia

    en.wikipedia.org/wiki/Infertility

    A female is most fertile within 24 hours of ovulation. Male fertility peaks usually in young adulthood and declines after age 40. [10] The time needed to pass (during which the couple tries to conceive) for that couple to be diagnosed with infertility differs between different organizations.

  4. Fertility - Wikipedia

    en.wikipedia.org/wiki/Fertility

    This is considered the end of the fertile phase of a woman's life. The predicted effect of age on female fertility in women trying to get pregnant, without using fertility drugs or in vitro fertilization: [38] At age 30 75% will conceive ending in a live birth within one year; 91% will conceive ending in a live birth within four years. At age 35

  5. Age and female fertility - Wikipedia

    en.wikipedia.org/wiki/Age_and_female_fertility

    A woman's fertility is in generally good quality from the late teens to early thirties, although it declines gradually over time. [1] Around 35, fertility is noted to decline at a more rapid rate. [1] At age 45, a woman starting to try to conceive will have no live birth in 50–80 percent of cases. [2]

  6. Ovulation - Wikipedia

    en.wikipedia.org/wiki/Ovulation

    The days in which a woman is most fertile can be calculated based on the date of the last menstrual period and the length of a typical menstrual cycle. [4] The few days surrounding ovulation (from approximately days 10 to 18 of a 28-day cycle), constitute the most fertile phase.

  7. When are you most fertile? How to find your monthly fertility ...

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  8. Natural fertility - Wikipedia

    en.wikipedia.org/wiki/Natural_fertility

    Waiting time to conception, or the time it takes for the woman to become pregnant, including the time for sperm to travel to the egg and form a zygote; Time added by fetal loss, also called postpartum infecundability, which is the amount of time necessary after a fetal loss for the womb to recover and be able to become fertile again

  9. The Definition of Life Is Bad and Doesn't Make Sense - AOL

    www.aol.com/lifestyle/definition-life-bad-doesnt...

    Scientists have debated the definition of life for decades, but they still lack a consensus on the answer. Skip to main content. Lifestyle. 24/7 help. For premium support please call: ...