How does the concentration of oestrogen affect and control the release of an egg during the menstrual cycle?

Question

pretty much exactly what I said in the title

Answer 1

Will this help?

Pre-Ovulation (Day 2 -14)

The menstrual bleeding usually lasts a few days. From Day 2 on, the body is already starting to prepare itself for the next cycle. Under the influence of Follicle Stimulating Hormone (FSH) and LH (Luteinizing Hormone) from the pituitary gland, the ovarian follicle starts to manufacture and secrete estrogen. Estrogen causes the uterine lining to grow. About 15 to 20 eggs start to mature in each ovary during this period. Each egg is encased and protected in its own follicle. The follicles also produce estrogen, the hormone necessary for ovulation to eventually occur. The level of estrogen slowly rises during this period as the uterus lining thickens and starts its preparation to receive the egg if ovulation occurs. A race progresses for one follicle to become the largest. Eventually, ovulation occurs when one ovary releases an egg from the most dominant follicle.


Ovulation (Day 14-15)

Although it averages about two weeks, this race to release an egg can take anywhere from about 8 days to a month or longer to complete. The key factor that determines how long it will take before you ovulate is how soon your body reaches its estrogen threshold. The high levels of estrogen will trigger an abrupt surge of Luteinizing Hormone (LH). It's this LH surge that causes the egg to literally burst through the ovarian wall, usually within a day or so of the occurrence that we called ovulation. After ovulation, the egg tumbles out into the pelvic cavity, where it is quickly transported into the fallopian tubes. The remainder of the ruptured follicle (called the corpus luteum) recedes back to the ovary and begins an important task of secreting progesterone. Why is progesterone so important? It causes an increase in blood vessels to the uterine lining in order to provide nutrients for the fetus in case fertilization occurs. It also inhibits other eggs from developing, and causes the Basal Body Temperature (BBT) to rise about half a degree.

Answer 2

In increased concentration it prevents the release of eggs. It is a component part of the birth control pill. See also estrogen if looking for references.

Answer 3

whats oestrogren