Information-Estimated Birth Date

Estimated Birth Date

Self-calculation

Last menstrual day + 280 days

The average period from fertilization to childbirth is 266 days. The first moment of pregnancy should be viewed as the date when the egg and sperm meet and fertilize or implant, but since it is not known exactly, it is assumed that fertilization takes place two weeks after the start of menstruation and 280 days after the start of the last period. Calculate the due date. 14 days from the last menstruation start to ovulation, 14 days from the ovulation to the next menstruation cycle is calculated based on the 28-day menstrual cycle. If the menstrual cycle is 25 days, 277 days after 28 days minus 3 days, the person with a 35-day menstruation period is 287 days plus 7 days will be his due date. However, even if you are pregnant normally, the delayed birth without analgesia is 10% of the total pregnancy by two weeks after the scheduled date.

Negel formula
If you cannot subtract or subtract 3 from your last menstrual month, add 9, and add 7 to the date you started your last menstrual period.
(A-3) Month (B + 7) if the last day of menstruation is from April to December
In the case of September 20, the due date is 6 (9-3) and 27 (20 + 7) days.
-(A + 9) month (B + 7) days when the last menstrual period starts from January to March
On January 5, the due date is 10 (1 + 9) and 12 (5 + 7) days.

How to check basal temperature curve
Basal body temperature is the body temperature measured immediately after getting a good night's sleep for 3 hours or more. In general, the body temperature is maintained at 36.3 to 36.6 (low temperature) before ovulation, and then rises to 36.8 to 37 (high temperature) after ovulation. If you do not become pregnant after ovulation, your body temperature will drop again as your period begins, and if you are pregnant, keep your hot temperature until birth. The difference between the average body temperature at high temperature and the average body temperature at low temperature is about 0.55, and record the average basal body temperature for 3 ~ 4 months. However, be careful when taking oral contraceptives. The last day of the period when the temperature is low is considered ovulation day, and 38 weeks (266 days) are added to calculate the expected date of birth. However, pregnancy does not necessarily mean pregnancy on the day of ovulation may differ slightly from the results produced by the hospital.

The first day of menstruation before pregnancy is regarded as the first day of pregnancy, plus 280 days is the due date. The term of pregnancy for 10 months is the result of calculating 1 month for 4 weeks.

How to see the basic temperature curve
-Based on 36.7, ovulation and body temperature rises above the baseline. After ovulation, the elevated body temperature lasts for about two weeks, when menstruation begins, it goes back to the colder, and then it is lower.
The rising point of the basal body temperature curve is the ovulation time, and the falling point coincides with the start date of menstruation.
-Ovulation is followed by a high temperature period for 2 weeks, then fertilization is maintained high temperature, when the physiology starts the body ohms go down to a low temperature.
-Hot days are usually 14 days, but low temperatures vary slightly with menstrual cycles.
-Even in low temperature, if you do not start the menstruation, the balance of the homo is considered to be broken. See your doctor for possible uterine abnormalities.
-If the distinction between high temperature and low temperature is not clear, ovulation is required.

Hospital calculation

It can be seen by ultrasound.
Beginning at 5 weeks of pregnancy, ultrasound can be used to confirm pregnancy and fetal status. It is common to measure the length from the head to the hips to calculate the corrected date, by inferring the expected date of birth compared to the average fetal growth for each month. This method is often used when pregnant women do not know the last menstrual date or when the menstrual cycle is irregular. However, after 12 weeks of gestation, it is difficult to accurately predict the date of delivery because the fetus shows differences in growth and development, and only the body can see the fetus. Your doctor may also have different readings for your ultrasound pictures. Therefore, even if the ultrasound was done in the hospital, the expected date of delivery may be a week or so.

Measure the height of the uterus
The size of the uterus where the fetus is located is used to calculate the expected date of delivery, which is used when the last menstrual date is not certain. The height of the uterus is the length from the pubic bone below the front of the pelvis to the highest point of the uterus. In 20-31 weeks of gestation, the height of the uterus almost coincides with the number of weeks of pregnancy, except for obese or underweight pregnant women. In other words, at 21 weeks of gestation, the height of the uterus is 21 cm, which has been used to determine the development of the fetus in the past. The highest point of the uterus is around 9 months of gestation, and in the case of Maksan, the fetus comes down and its height is lowered. Usually, the sole height of the uterus does not calculate the due date.

The first time you feel the birth can tell you the scheduled date. The first mother feels her first pregnancy at about 19-20 weeks of pregnancy, so 20 weeks plus the date is expected to give birth. The mother-in-law feels quicker than the mother-in-law, so it is difficult to estimate the due date by this method.

Range of normal births

The due date is not accurate.
Even if you calculate your due date in various ways, you don't have to be overly concerned that day. More than 80% of pregnant women give birth one week earlier or later than the due date. It is common for the new mother to give birth later than the scheduled date, and the pregnant woman to give birth earlier than the scheduled date. The purpose of knowing the due date is to check the development of the fetus and help the pregnant woman to live the pregnancy at that stage.

Five weeks before and after the expected date of delivery, the delivery is fixed, but delayed pregnancy is dangerous.
Births for five weeks, three weeks before (37 weeks) to two weeks (41 weeks and 6 days), based on the expected birth date (40 weeks) are within the normal range of birth. Therefore, it is not necessary to be overly obsessed with dates, but care must be taken to avoid delayed pregnancy, which is too late to give birth. The fetus continues to grow until the last month of pregnancy, especially during the few days immediately before birth. In addition, the fetus over the due date sees more of the feces, the amount of amniotic fluid that surrounds the fetus gradually decreases, thereby worsening the intrauterine environment. At the same time, the placenta is weakened and oxygen and nutrient sharing are not smooth. If this condition persists, the fetus may eventually become dangerous. In addition, gestational poisoning may appear later in the pregnancy for no reason, so be careful.

Information-How to check pregnancy

How to check pregnancy

Pregnancy Diagnostic Reagent Test
When pregnant, hormonal hormones are released into the urine of chorionic gonadotropin (hCG), which is a way to find out if you are pregnant using a specific antibody that binds to this hormone. Because it is so small, it is most accurate to test it in the first urine in the morning, when a relatively large amount is accumulated. Inspection is possible within 7-9 days after correction, with accuracy of 95% or more. However, ectopic pregnancy may not appear to be pregnant.

Urine test
If you go to the hospital for the first time, the first four weeks after the revision is 100% accurate. Examination after 2 weeks of fertilization can yield 90% accurate results.

Blood test
This test is done in a hospital and is more accurate than a urine test. Pregnancy is confirmed by the presence of chorionic gonadotropin in the blood.

Information-A sign of pregnancy

A sign of pregnancy

In addition to stopping menstruation during pregnancy, various symptoms occur. In particular, check for signs of pregnancy that may help women with irregular periods.

Pregnancy Signs

Menstruation is delayed more than a week.
If your menstrual cycle is regular, you may suspect pregnancy if your menstrual date is more than a week later. This is because sperm and eggs meet and fertilize, and when embryonic cells are implanted on the uterine wall, menstruation stops. However, because of stress, mental shock, endocrine dysfunction, uterine dysfunction or ovarian dysfunction, menstruation may stop even when pregnancy, so check for other signs of pregnancy.

Body temperature is high and chilly.
Your body temperature is higher than usual and sometimes your body is cold as if you have a cold. If you are pregnant, even if your due date, basal body temperature does not go down, like the ovulation period 36.7 ~ 37.2 mild fever will continue until 13-14 weeks of pregnancy. Therefore, if the fever lasts more than three weeks, it can be considered as a pregnancy, but there may be no such symptoms and other diseases may be the cause.

Medications or radiography at this time can cause fetal malformations. Therefore, do not take any medicine without a doctor's prescription when there is a chance of pregnancy.

Easily feel tired.
Your body feels tired, easily tired, and gets more sleep. It can be annoying for no reason. This is a natural phenomenon to protect the body of pregnant women conceived with life due to lutein hormone. However, if you are sick, you should consult a specialist.

Spots and freckles stand out.
Pigmentation appears on the face, abdomen, vulva, and armpits as well as the breast. A phenomenon caused by the increase of melanin pigment under the influence of luteinizing hormone. The blemish and freckles stand out and the area around the eyes becomes blackish.

The belly is swollen and constipation occurs.
As your uterus grows in size, your belly feels tight and constipation can occur. This is because the luteal hormones weaken the bowel movement and the uterus gradually presses the intestines. In severe cases, hemorrhoids or hemorrhoids develop, and if hemorrhoids are present, the symptoms worsen.

Breasts get big and hurt.
Some breasts swell and feel pain before menstruation, which can occur early in pregnancy. The teat becomes sensitive and touches the underwear and is sensitive to contact or temperature changes. Nipples or areolas may turn dark, but some people do not feel this change.

Lots of vaginal discharge.
When the fertilized egg is implanted in the uterus, hormones influence the activity of the uterus, which leads to a lot of secretions. Early pregnancy secretions are odorless and sticky milky mucus with no itching. If the vaginal area is itchy, smells from the discharge, or is dark and pus like chocolate, it may be bacterial vaginitis, cardida, or trichomoniasis.

Urinate often.
Not only is it difficult to urinate, but it's unpleasant to have a residual feeling after urinating. This is because, when pregnant, blood is collected around the pelvis to protect the uterus, which stimulates the bladder. An enlarged uterus also presses on the bladder. When the uterus rises from the pelvic cavity to the upper abdomen and does not compress the bladder, the symptoms disappear in the middle of pregnancy, and later in pregnancy, the fetus's head presses the bladder and reappears. If you put up with urine during pregnancy, you are more prone to cystitis, so if you feel urgent, go directly to the bathroom.

Morning sickness symptoms appear.
Morning sickness usually begins around two months of pregnancy, but sometimes it appears early. Mild vomiting, loss of appetite, and suddenly dislike your favorite foods appear. If you are pregnant, you may not know the symptoms of morning sickness, so you may be taking medicine or taking medical examinations.

In the case of imaginary pregnancy, signs of pregnancy remain the same. However, when the hospital examination confirms that the pregnancy is not pregnant, the symptoms appear naturally disappear.

Information-Fetal Growth

Fetal growth
Life begins when the egg and sperm combine to form a cell called the fertilized egg. Examine the entire process from fertilized egg to fetus.

Fetus at 26-day-old
At the end of the first month of pregnancy, the fetus has a rounded head, arched back, and a long tailed vertebrate. The fertilized egg, which was a single cell, split into hundreds of cells in just four weeks, and developed into organized cells with major human strains such as nerves, muscles, blood vessels, and skeleton.
At this time, the heart, brain, spinal cord, and sensory organs begin to form and function to some extent. It is still embryonic and small, C-shaped.

Fetus at 6 weeks
Beginning at 4 weeks, there are visible small spots on the face, and at 6 weeks, the first eyelid is formed, taking the initial form of the retina. You can start the heartbeat and hear the beats by ultrasound, but the two vessels are tubular because they don't have heart shape yet. When the head grows to become second class and enters the 7th week, the shape of the head, body, and limbs is divided, and the shape of the person becomes gradually.

Fetus at 12 weeks
It is the time when the tail is completely lost and the embryo becomes a fetus. Almost all of the major strains develop, creating the necessary organs, which develop into the many organs necessary for the fetus to survive over the next six months. Nostrils appear on the nose and nails begin to appear. You can hear the heartbeat through ultrasound, and you can watch movements like sucking your fingers, yawning or hiccups, and stretching.

Fetus at 16 weeks
The head occupies about one third of the body, and the limbs become clear. Increased amniotic fluid increases the fetal activity and moves continuously for 5 minutes, which stimulates brain development and strengthens muscles. All retinal structures are completed and the initial sensory state of the eye is formed, and the genitals are gradually developed so that men and women can be accurately distinguished.

Fetus at 25 weeks
Be a full quadruped and move your hands and feet freely. Eyebrows, eyelashes, and hair appear, and the eyelids fall off and sometimes close and close your eyes. Because there is no fat under the skin, the skin is shriveled, and the face is frowned or the eyes are moved. From the 24th week they often suck their fingers and react sensitively to outside sounds, and above all, the brain begins to develop rapidly.