What Is Pregnancy Physiology?

The conception process refers to the process where the sperm meets the egg, fertilizes, and the fertilized egg is then transported through the fallopian tube into the uterine cavity. The tubal ampulla is waiting for fertilization. Eggs survive for about 24 hours.

Conception

The conception process refers to the sperm meeting with the egg, fertilizing, and fertilizing the egg.
From a medical perspective, the conception process includes [1]
1. Men's testicles can produce normal sperm . Normal adult man shot at once
The best time to conceive in your life-
Female 25 to 29 years old, male 27 to 35 years old
Doctors pointed out that although women's reproductive organs have basically matured during puberty and can theoretically become pregnant, from a medical perspective, the rate of congenital malformations in babies born early is higher. The medical profession generally agrees that women 25 to 29 years old and men 27 to 35 years are the best childbearing age, because healthy men and women in this age are mature and stable both physically and psychologically, and have strong reproductive functions and a certain economy. Basic and life experience, can take care of yourself and children.
Studies have confirmed that the chances of conception and the incidence of fetal abnormalities in older mothers (mothers over 35 years) are much higher than in pregnant women under 35 years of age. In addition, older women are more likely to be complicated by hypertension and diabetes, increasing the risk of childbearing. Similarly, men who missed the optimal childbearing age not only decreased sperm quality, but also had abnormal rates of increase. Therefore, it is recommended that couples who want BB should not miss the best childbearing age no matter how busy their work and life are.
The best time of conception of the year-
Late summer and early autumn (end of July to early September)
"Although you can get pregnant all year round, but from the perspective of eugenics and optimal child care, choosing the best 'day time' is more conducive to successful pregnancy and even the healthy growth of your baby." Doctors generally believe that late summer More "time advantage":
The first is the impact of the external environment. Air pollution is relatively heavy in many areas in winter, and the virus is rampant in spring. These external factors are not good for early embryo growth and development.
Secondly, the effect of seasons on the diet of pregnant women. If you are pregnant in late summer and early autumn, by the end of autumn and early winter, pregnant women have passed the first three months of the pregnancy reaction period, and the general appetite will increase significantly. At this time, many fruits and vegetables are harvested to ensure the nutrition of pregnant women. And fetal brain development is very favorable. At the time of labor, it is also the end of spring and early summer. At this time, the food supply is richer than in winter and the weather is pleasant, which is more conducive to the recovery of the maternal body.
In addition, sunlight intensity also has an effect. Babies born in late summer and early autumn are mostly born in April to June of the following year. The weather is not cold or hot. The newborn can be relatively simple to wear, which is not only easier to care for, but also convenient for mothers to breastfeed.
The best time to conceive in January-
Within 12 hours after ovulation
"The most successful conception during ovulation. Most people understand this, but it's different." The doctor said, "Many couples are 'planted' on this."
In theory, the best time to conceive is within 12 hours after ovulation. However, no matter which method of monitoring ovulation is used, you can only determine how many days the eggs will ovulate. It is difficult to know which day and moment the follicles break. In addition, the eggs can only survive for 24 hours. After ovulation, the sperm enters the body and undergo a complicated migration process. The time required for this process cannot be accurately measured. Therefore, it is generally not allowed to allow the sperm to wait for ovulation, but it is recommended to have sex in the same room once a week before ovulation, and then predict the ovulation time by measuring the basal body temperature or using ovulation test strips, etc. Meet with the egg, so the success rate of pregnancy is greater.
The best time to conceive in a day-
When energetic and relaxed
The best time to conceive is in one's life, one year, and one month. So, when does the same room affect the success of the pregnancy? Although the answer is not certain, some studies abroad have pointed out that women in the northern hemisphere, Between July and January of the following year, about 90% of women's ovulation occurs between 4pm and 7pm; in spring, 50% of women's ovulation occurs between midnight and 11am.
The doctor said that according to the living habits of Chinese people, many experts suggest that the same room time should be selected in the evening. If the couple are tired at night, they can use the next morning to rest as the same room time. But no matter what time of day, as long as you are energetic and relaxed, you can be the best time to conceive.
What needs to be reminded is that couples who want to make a man successfully, after the same room, the wife cannot rush to get up, it is best to lie in bed for an hour or two, so that more sperm have enough time to trek to the womb.

Sperm abnormalities during conception

During fertility, sperm and egg combine to form a fertilized egg, which develops into
Conception process under electron microscope
Embryos and sperm occupy an extremely important position in reproduction and reproduction. Abnormal sperm and semen, such as: asthenospermia, oligozoospermia, azoospermia, azoospermia, sperm deformity, and sperm semen are not liquefied, will prevent pregnancy.

Ovulation disorders during conception

Healthy and mature eggs are a prerequisite for women's conception. Anovulation or ovulation disorders caused by ovarian insufficiency or abnormal menstruation will affect women's conception.

No intercourse during ovulation during conception

In normal menstrual women, a healthy and mature egg is discharged every menstrual cycle, and the egg can only survive about 1 day after the egg is discharged. The sperm can survive for up to 1-3 days in the woman's vagina. Conceived.

Reproductive tract obstruction during conception

Sperm can be excreted through normal sexual life in men with unobstructed vas deferens, and sperm can pass smoothly through the cervix and uterus, and reach the fallopian tubes to combine with eggs. Therefore, once tubal obstruction, fallopian tube obstruction, fallopian tube adhesion, fallopian tube effusion, fallopian tube lift and other fallopian tube problems occur, sperm and eggs will lose the chance to conceive, and natural pregnancy is completely impossible.

Environmental problems during pregnancy

Fertilized egg development and endometrial growth are carried out simultaneously. If the fertilized egg enters the uterine cavity earlier or later, the endometrium is not suitable for implantation and continued development of the fertilized egg, such as endometriosis and uterine dysplasia. , Uterine malformations, endometritis, etc. will affect pregnancy.

Physiological situation during conception

Such as contraception, different rooms, male sexual dysfunction, etc. will hinder pregnancy. [2]

Infertility standards during conception

Those who have a normal sexual life, have sex in the same room during the ovulation period, have not done any contraception, and have not been pregnant for more than one year are infertile and need treatment.
The three major processes of pregnancy and fetal development
According to the degree of fetal development, the entire fetal development process can be divided into: early pregnancy, second trimester and third trimester.
Early pregnancy: 1-12 weeks, embryos are in the stage of rapid embryo development, embryo teratogenicity is high, and pregnancy response is large;
Second trimester: 13-28 weeks, the embryo has been formed, and whether the embryo development is normal through B-ultrasound;
Late pregnancy: 29-40 weeks, embryos have basically completed development, and the embryos born at this time can already survive.
Pregnancy and fetal development [3]
1 month of pregnancy: Your baby is still an embryo, consisting of two layers of cell populations. All organs and body parts of your baby will develop from these two layers of cell populations.
Your baby is about the size of a cashew nut during 2 months of pregnancy and is constantly moving. His fingers started to form, but they still looked a little like duck webs.
At 3 months of pregnancy your baby is seven or eight centimeters long and weighs half a banana. Already able to see his fingerprints, this unique "identity card" will follow him throughout his life.
Baby cartilage like 4 months pregnant is developing into real bones. If you have a B-ultrasound within this month, the doctor may see your baby sucking his thumb.
5 months pregnant baby's eyebrows and eyelids have grown, he loves to move. His skin is still crumpled, and it won't hold up until he gains weight.
Billions of neuronal cells are being generated in the brain of a 6-month-old baby. To accommodate brain development, his head is also enlarged. Your baby's nutritional needs are also peaking.
After 7 months of pregnancy, the baby is able to open her eyes and may look at the surroundings before closing it. The narrow space in the womb during the third trimester does not actually decrease your baby's activity level.
The 8-month-old baby's subcutaneous fat is getting thicker and thicker, making his body look fuller. His lungs have matured and he is ready to breathe air after birth.
Your baby is 9 months pregnant and is ready to meet you soon. He may be 51 cm long and weigh 3.2 kg (boys tend to be slightly heavier than girls.
How to monitor fetal development
Measure the height of the uterus. Can reflect fetal growth and development and amniotic fluid. After urination, the pregnant woman takes a supine position, her legs are flexed, her hands are placed horizontally on her abdomen, and her fingers touch the height of the uterine bottom. Between the pubic symphysis and the umbilicus at three or four months, the umbilical cord is flat at 5 months, the umbilical cord and the xiphoid process are at 7 months, and the 2 to 3 horizontal fingers under the xiphoid process are at 9 months. Descend to or between the umbilicus and xiphoid process.
Fetal heart monitoring. Can directly reflect the life situation of the fetus, too slow, too fast or irregular is a reflection of fetal hypoxia, should be treated in time. After 5 months of pregnancy, the doctor can hear "clicks", "clicks" with the earpiece or the instrument for checking the fetal heart in the abdomen (normally 120-160 times / minute).
Fetal movement count. Pregnant women can feel their fetus moving in the womb after 4 months of pregnancy. Normal fetal movement is about 3 to 5 times per hour. If less than 3 times, fetal hypoxia should be considered. Generally, fetal movement is significantly reduced or disappeared 12 to 48 hours before the fetal hypoxic death. Fetal movement count is a simple and easy method to estimate the safety of the fetus in the womb. Pregnant women can monitor the fetus by themselves.
Pregnancy process
After the mother is sent to the delivery room, she will be arranged to lie on the delivery bed, with her legs separated and fixed on the pedals on both sides. Then, the nurse will perform perineal disinfection and cover the sterile operation sheet for the mother. Physicians or nurses will ask the mother to force the fetus out of the vagina during the pain. After some hard work, the baby is finally about to be born! Before the fetal head emerges, the doctor injects a local anesthetic into the perineum-tight woman and cuts the vulva, which can prevent the wound from cracking irregularly and affect future healing.
The fetal head will be delivered slowly, and the doctor will carefully protect the fetus and control the speed of labor. Immediately after the fetal head is delivered, a rubber tube must be used to suck up the secretions in the fetus's mouth to allow the baby to breathe smoothly. The umbilical cord is cut about 30 seconds after the fetus is delivered, and the baby is placed in a crib with thermal insulation equipment to continue processing and cleaning.
Usually, the baby will start crying shortly after birth. Crying loudly indicates that the fetus is breathing normally. If there is no crying, the baby should be slightly stimulated or treated with oxygen. After a simple inspection and treatment, send the baby to the baby room for further detailed inspection and care; of course, before sending it out, the mother and family will appreciate it and see how innocent and lovely the new life is.
The baby is born, but the doctor's job is not over. They slowly pull out the placenta and perform a uterine massage at the same time, which can reduce postpartum blood loss. Finally, the ruptured perineum is carefully sutured. After all the steps are completed, the mother will stay in the delivery room and observe it for about two hours. If the condition is stable, she will be sent to the ward for a good rest.

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