By calculating your menstrual cycle, you can predict when your next period will start and when you will ovulate. Some people may have been swayed by menstruation, such as worrying about what to do if menstruation overlaps with travel plans or important events, or rushing to buy sanitary napkins due to sudden menstruation.
Knowing your menstrual cycle gives you peace of mind in planning and preparing for your next period. In addition, knowing the changes in your body that occur during your menstrual cycle can help you manage your physical condition.
What is menstrual cycle? how do you predict I want to be able to calculate my menstrual cycle! I have compiled an article for you.
Find out in this article
- Basic knowledge of the menstrual cycle
- how to calculate menstrual cycle
- How to predict your ovulation date
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What is the menstrual cycle
A menstrual cycle is the number of days from the first day of menstruation to the day before the next menstrual period. The menstrual cycle is divided into four cycles: the follicular phase, the ovulatory phase, the luteal phase, and the menstrual phase. And the menstrual cycle is calculated with 4 cycles as one segment.
follicular stage
The follicular phase, as the name suggests, is the time when estrogen (follicle hormone) is secreted in large amounts. Estrogen stimulates the growth of primordial follicles in the ovary and the thickening of the endometrium in the uterus.
The basal body temperature is characterized by a low temperature period that continues until the ovulation period.
During the follicular phase, metabolism is active, so skin and hair are in good condition, making it suitable for dieting. In addition, the secretion of estrogen activates the parasympathetic nerves, and it is a time when you can spend time mentally and calmly.
ovulation period
The ovulatory period is the period when fully grown follicles are ovulated due to the influence of luteinizing hormone (LH) secreted from the pituitary gland. The temporary secretion of a large amount of luteinizing hormone to promote ovulation is called the LH surge, and ovulation occurs within about 24 to 36 hours after the LH surge.
The basal body temperature is characterized by a rapid rise after the body temperature drops and transitions to a high temperature period.
During the ovulation period, the hormonal balance changes rapidly, which can cause your skin and hair to become unhealthy and mentally unstable.
luteal phase
The luteal phase is a period in which a large amount of progesterone (luteinizing hormone) is secreted, and together with estrogen (follicular hormone), which remains at a high blood concentration, it works to create a uterus suitable for pregnancy.
The basal body temperature is characterized by a high temperature period that continues until the next menstruation begins.
Changes in the body that are likely to occur during the luteal phase include chest tightness, tenderness, and lower back pain. The effects of progesterone make it easier for the body to retain water, so some people suffer from cold and swelling, and poor blood circulation causes skin problems such as acne, spots, freckles, dark circles, and dullness.
In addition to changes in the body, it is also a time when irritability, anxiety, drowsiness, and mental instability are likely to occur. .
menstrual period
The menstrual period is the time when the endometrium and blood are expelled together when the fertilized egg has not been implanted. Two female hormones, estrogen and progesterone, decline sharply.
The basal body temperature is characterized by a transition from a high temperature period to a low temperature period.
Low body temperature causes poor blood circulation, and physical disorders appear. Menstrual pain is one of them, and many women are probably experiencing it. In addition to pain, skin troubles and mental depression are likely to occur, and recovery starts around the end of menstruation when estrogen begins to be secreted.
Variations in the menstrual cycle and their causes
The menstrual cycle is affected by changes in the mental state and environment at that time, and may be slightly off. On the other hand, there are cases where the menstrual cycle is disturbed due to some abnormality or disease, so it is very difficult to know the normal menstrual cycle and to calculate your own menstrual cycle and predict the next menstruation. It's important.
normal menstrual cycle
A normal menstrual cycle is 25-38 days. For example, if you say, "I always have a 25-day cycle, but this month I'm 10 days late," this means that my menstrual cycle is 35 days, which is within the normal range.
A normal menstrual period is 3 to 7 days.
When the total amount of menstrual blood is less than 20ml, it is called "hypomenorrhea", and when the menstrual period is shorter than 2 days, it is called "hypermenorrhea".
Hypomenorrhea and hypershort menstruation are related to anovulation and uterine diseases, low function of the corpus luteum that secretes progesterone after ovulation, and insufficient thyroid hormone secretion. To do.
On the other hand, menstrual bleeding is so heavy that the napkin cannot last for an hour, and the total bleeding amount is 140ml or more. .
Excessive menstrual flow and protracted menstrual flow also cause loss of iron along with bleeding, which increases the risk of developing iron deficiency anemia, so caution is required.
irregular menstrual cycle
If menstruation is uneven every month and does not come in a stable cycle, it is a condition called "irregular menstruation". For example, "Last month I had a 20-day cycle, but this month I had a 40-day cycle."
Even if menstruation occurs regularly, if the menstrual cycle is short (less than 24 days), it is called "polymenorrhea". . Frequent menstruation, oligomenorrhea, and irregular menstruation are often caused by hormonal imbalance.
Even if there are no health problems, people with immature fertility, people who have just had menarche, and people who will soon reach menopause are especially susceptible to hormonal imbalance. In addition, there may be abnormalities in the function of the ovaries and uterus, so if you are worried about your menstrual cycle, please see a doctor.
Read the following articles together
Causes and remedies for irregular menstruation
How to calculate your menstrual cycle
To calculate the menstrual cycle, it is important to keep a record of the start date of menstruation. When your period starts, mark it on your calendar or write a "1".
Count the first day of menstruation as "Day 1", the next day as "Day 2", and the days after that as "3, 4, 5...". It will end when the next menstruation begins. A new count starts on the day when the next menstruation starts as "Day 1".
A menstrual cycle is the number of days from the first day of menstruation to the day before the next menstrual period. It just counts the number of days, so you don't need to do anything special. However, if the hormone balance is disturbed due to the influence of the environment or physical condition, the menstrual cycle may change significantly, so it may be more accurate to calculate the average value from several menstrual cycles.
If you want to get pregnant, know the timing of your menstrual cycle
If a couple wants to conceive, predicting the date of ovulation based on several months of menstrual cycles can increase the chances of conception. This is because you can adjust the timing of sexual intercourse by narrowing down the days when you are most likely to get pregnant.
Predicting the date of ovulation and having sexual intercourse is called the timing method. In general, the lifespan of an egg is about 1 day, and the lifespan of a sperm is about 3 days. increase.
In a normal menstrual cycle, the 14th day from the first day of menstruation is the approximate date of ovulation. In addition to the menstrual cycle, there are several ways to predict the ovulation date.
- Make a basal body temperature chart
- Check with commercially available ovulation day test drugs
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However, even if the menstrual cycle is regular, it is common for ovulation to be delayed by several days, and in order to accurately predict the timing of ovulation, it is necessary to regularly check the ovaries with ultrasound at a gynecologist.
For those who find it difficult to go to a gynecologist, or for those whose menstrual cycle shifts little by little, increasing the number of regular sexual intercourse will increase the chances of pregnancy rather than waiting for pregnancy with less intercourse. can do. In addition, try to eat a well-balanced diet, exercise moderately, and get enough sleep to keep your mind and body healthy.
Read the following articles together
Knowing your menstrual cycle can help you get pregnant! Learn more about timing methods
summary
The number of days from the first day of menstruation to the first day of the next menstrual period is called the menstrual cycle. The menstrual cycle is divided into four phases: the follicular phase, the ovulatory phase, the luteal phase, and the menstrual phase.
Knowing in advance about the changes that are likely to occur in your body can help you remember things like, ``I might get sick at the end of the month, so don't overwork,'' or ``I'll take good rest this week and take care of my mental health.'' You can do it, and you can quickly notice if there is an abnormality compared to a normal menstrual cycle.
In order to get along well with your body, let's master the calculation of the menstrual cycle.
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