menstrual cycle calendar

Menstrual Cycle Calendar

Menstruation is a monthly period of dropping off of the wall lining of a human female uterus in the form of blood depleting externally out from the vaginal orifice in the pubertal phase up until full growth maturity of the reproductive organs. Normally, it takes 3-5 days in duration.

As menstruation is a monthly period, therefore it only goes to show that such period is a cycle. Literally, menstruation occurs every month. However, some females have irregular menstrual cycle calendar. Normally, it’s a 28 day cycle but for the irregular monthly menstrual periods it would take as far as 32-35 days.

In addition, menstruation cycle period has 2 stages. The first stage is referred to as follicle stage or stage of proliferation. It starts from the 1st day of menstruation which runs from 10-14 days or just until ovulation period. Ovulation is said to occur on the 12-14th day from menstruation. In this stage there is presence of shedding off endometrium lining of the uterus and eventually begin proliferating as a preparatory for embryonic conception.

The second stage of menstruation cycle is called the luteal stage, wherein, it is said to begin during ovulation phase which is again 12-14th day from menstruation date.

During luteal stage, there is said to be higher levels than normal of the hormones estrogen and progesterone for preparation of the endometrium lining for embryonic conception. Should conception not happen; the said hormonal levels will go down again to normal levels giving way for shedding off uterine lining during menstruation.

It is important to note that ovulation and date of next menstrual period can be pre determine through the use of menstrual cycle calendar or menstrual cycle calculator.

For the determination of next menstruation date, just simply calendar and note the first day of menstruation period and count the days since then until the 28th day for regular cycle or 35th day, this marks when to expect the next menstruation period. For regular 28 days cycle its (see example)


Menstruation period (day 1) – August 16
Expected date of next menstruation – Sept. 13

Ovulation period formula:

Menstruation date + 12/14 days = ovulation date
August 16 + 12-14 days = August 28-30