Menstrual Phases

The menstrual cycle will be divided into 4 phases to simplify timing: menstruation, proliferative, secretory and premenstrual. Ovulation is between proliferative and secretory phases, and it will be considered an intermediate time.

Follicular phase has been divided up into menstruation and proliferative phases. Menstruation is when the uterus lining is shed. The proliferative phase is from the end of menstruation until ovulation: this is the time when the uterus rebuilds to prepare for potential pregnancy.

Luteal phase has been divided into secretory and premenstrual phases. The corpus luteum which produces progesterone is present during the secretory phase. Premenstrual phase begins after the corpus luteum disintegrates, and it ends at the beginning of menstruation.

Symptoms

The symptom of hot-flashes are associated with abnormally high body temperature. An excessive imbalance of progesterone or prolactin should be avoided. Decreased fertility may underlie symptoms indicating increased progesterone or prolactin. Hot-flashes are associated with lower than normal estrogen production.

Determining Menstrual Phase

Often, menstrual phases are synchronized with the Moon's phases, but it is not always so. Menstruation usually starts around New Moon. See the links under resources for more.

Menstruation

Menstruation usually starts around New Moon.

Proliferative

Proliferative phase begins once menstruation stops. Sometimes, menstruation can stop for a day, then resume. This phase is when estrogen levels gradually start to rise. When estrogen levels are low, there is an absence of cervical mucus.

Increasing estrogen levels influence mucus to be clear and watery.

Ovulation

Signs of ovulation include a feeling of ovarian itching, increased cervical mucus that is egg white, increased mucus, increased body temperature and swollen genitals. The occurance of a Full Moon is a less reliable association with ovulation.

Secretory

During secretory phase, progesterone produced by the corpus luteum in comparison to lower estrogen raises body temperature. Temperature for secretory phase ranges between 36.5℃ to 37℃. If body temperature is higher than 37℃ (98.6℉), or if you have hot-flashes, see estrogen deficiency.

Dominant progesterone levels cause mucus to be thick and unclear.

Premenstrual

Premenstrual syndrome symptoms are likely from a sudden decrease in progestogen synthesis. Here, body temperature lowers under 36.5℃.

Lunar Calendar

≈ Waning Gibbous
≈ 77.9% illuminated
19 days 8 hours old
waning
UTC 2019 May 23

2019 Menstrual Calendar
New	1st Q	Full		Last Q
Menstruation	Proliferative	Ovulation	Secretory		Premenstrual
May 4	May 12	May 18		May 26
Jun 3	Jun 10	Jun 17
2019 May 23 UTC

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References:

Menstruation. Encyclopedia Britannica. 2017. .
Menstrual Cycle - Proliferative Phase, Secretory Phase, Menstruation. JRank. .
How to Predict Ovulation by Charting Your Basal Body Temperature and Cervical Mucus. Baby Center. .
Ovulation, a sign of health. .
10 Signs of Ovulation. .

Resources:

Menstrual Cycle - Proliferative Phase, Secretory Phase, Menstruation. JRank. http://science.jrank.org/pages/4235/Menstrual-Cycle.html.
How to Predict Ovulation by Charting Your Basal Body Temperature and Cervical Mucus. Baby Center. https://www.babycenter.com/chart-basal-body-temperature-and-cervical-mucus#articlesection3.
How does cervical mucus change during menstrual cycle?. https://www.pregnanteve.com/cervical-mucus-period/.
Ovulation, a sign of health. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5730019/.
10 Signs of Ovulation. https://www.justmommies.com/articles/signs-of-ovulation.shtml.