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2. Ovulation - Wikipedia

   en.wikipedia.org/wiki/Ovulation

   Ovulation is the release of eggs from the ovaries. In women, this event occurs when the ovarian follicles rupture and release the secondary oocyte ovarian cells. [1] After ovulation, during the luteal phase, the egg will be available to be fertilized by sperm. In addition, the uterine lining ( endometrium) is thickened to be able to receive a ...

3. Human fertilization - Wikipedia

   en.wikipedia.org/wiki/Human_fertilization

   Human growthand development. Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube. [1] The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development. Scientists discovered the dynamics of human fertilization in the 19th century.

4. Estrous cycle - Wikipedia

   en.wikipedia.org/wiki/Estrous_cycle

   Ovulation occurs 24–48 hours after the luteinizing hormone peak, which occurs around the fourth day of estrus; therefore, this is the best time to begin breeding. Proestrus bleeding in dogs is common and is believed to be caused by diapedesis of red blood cells from the blood vessels due to the increase of the estradiol-17β hormone .

5. When are you most fertile? How to find your monthly ... - AOL

   www.aol.com/news/most-fertile-guide-getting...

   "If a person has a 28-day cycle, ovulation will occur at day 14 and the next period will start 14 days after that," Purdue says. "If the person has a shorter cycle, say 25 days, ovulation will ...

6. Ovulation Cycles and Why They Can Be Confusing - AOL

   www.aol.com/news/ovulation-cycles-why-confusing...

   Learn how to calculate ovulation based on the length of your menstrual cycle. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800 ...

7. 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.