* * * Those things with eggs
12-24 hour system
This number is the survival time of the egg. The strongest fertilization ability of an egg is within 24 hours after ovulation. If an egg enters the fallopian tube and meets * * * within 24 hours, * * * and the egg can be combined for fertilization. If * * * loses the chance to meet the egg at this stage, the egg will lose its fertilization ability and die. Therefore, generally speaking, pregnancy is only possible 1 ~ 2 days before and after ovulation.
2-3 days
This number is the survival time of * * * in women. Although * * * can only survive for a few minutes in the natural environment in vitro, it can survive for up to three days in women. The magical time difference also provides more possibilities for * * * to meet and fertilize.
6-7 days
This is the time required for fertilized eggs to hatch. Many people don't know how long it will take for * * * to combine with eggs, and how long it will take for * * * to get pregnant after combining with eggs. Generally speaking, the fertilization process takes 24 hours, and the blastocyst begins to rupture on the 6th to 7th day after fertilization. The implantation position is mostly in the uterus 1/3. The completion of implantation means that the embryo has been placed and the placenta has begun to form, giving birth to the fetus.
Secrets of menstrual cycle and ovulation
14 days
If the menstrual cycle is regular, the ovulation period of women is generally about 14 days before the next menstrual cramp. The first 5 days and the last 4 days of ovulation day, including ovulation day, *** 10 day is called ovulation period. During this time, luteinizing hormone rose rapidly, and * * * eggs were discharged. At the same time, cervical mucus becomes lubricated, making it easier for * * * to meet eggs.
7 days
This number is the effective pregnancy time during ovulation. Generally speaking, the survival time of eggs will not exceed 3 days, and the survival time of women's * * * will generally not exceed 4 days. That is to say, the effective pregnancy time during ovulation is generally 5 days before ovulation, because * * * can survive for 5 days and 2 days at most in women after ovulation, because it can only survive for 2 days in women after ovulation, which means that the effective pregnancy time is generally around 7 days.
0.3—0.5℃
During ovulation, your body temperature will rise by 0.3-0.5℃, and ovulation usually occurs before or during the temperature rise. The basal body temperature of women generally changes with ovulation. In the first half of the female menstrual cycle, the body temperature fluctuates below 36.6 degrees. After ovulation, it will go to the second half of the menstrual cycle. Under normal circumstances, the body temperature is higher than the first half, and the normal fluctuation is between 36.6 and 37 degrees. If the body temperature rises, it means ovulation, and after a high temperature period lasting about two weeks, the woman's body temperature will drop again.
Timing of conception: When is the easiest time to get pregnant?
17 point-19 point
This number is the best time of day to get pregnant. Cagnacci, an Italian scientist, pointed out that scientific research has long found that hormones play a key role in influencing women's conception, which can make most women ovulate at 5-7 pm (17-19). Scientists also found through experiments that,
28 years old
The childbearing age should not exceed 28 as far as possible. Because with the growth of age, people's fertility is declining. In addition, if they get pregnant too late, the quality of eggs will decrease and the probability of embryo malformation will increase. At the same time, it is not conducive to finding problems in time, thus increasing the difficulty of treatment. Generally speaking, the offspring born when men are 30-35 years old are the best; Physiologists believe that the best age for women to give birth is between 23 and 28. During this period, women are fully developed and their eggs are of high quality. If pregnant, women have fewer complications, less risk of delivery, better fetal growth and development, and the lowest incidence of premature delivery, deformed children and demented children.
August to September
August and September are the best months for pregnancy in a year. From a medical point of view, embryo development has three key periods: one is the brain formation period, that is, the third month of pregnancy; The second is the brain cell division period, after six months of pregnancy; Third, after the cell development coordination period, the seventh to ninth month of pregnancy. If you choose to conceive in August-September, the third and sixth months of pregnancy and the delivery period are in the late autumn and mid-spring with suitable climate and convenient nutrition, the fetal nervous system can be well developed.
Probability of conception: how to improve the success rate of conception
24
Women with a body mass index of 24 have a high success rate of pregnancy. A study in the United States found that women with a body mass index close to 24 are twice as likely to get pregnant as other women. What is your body mass index? It's actually very simple. The formula is:
Body mass index = weight (kg) ÷ height (m)? 2;
In fact, the body mass index is 24, which is a slightly higher number. If your index happens to be 24, don't worry about losing weight. Keep this figure, because it will make you more likely to get pregnant than others.
10%
For every 65,438+00 kg of thin women, the pregnancy rate will increase by 65,438+00%. Therefore, it is very important to control weight before pregnancy. According to the above contents, you can set the standard weight that is the easiest to conceive as body mass index =24, and if it is 24, you can lose weight appropriately. But remember, obesity or thinness will reduce the chances of pregnancy.
1.7%
This is the probability that twin women are pregnant and have twins. By investigating the families of twins, scientists found that 4% of twins have twin mothers, while only 1.7% of twins have twin fathers. The genetic inheritance of twins is mainly on the mother's side. The probability of twin pregnancy in women with twins is 1.7%. On the contrary, for women who are not twins but whose parents are twins, the probability of having twins is 0.8%. If the mother is a twin, the probability of having twins is as high as 1.7%.
The secret of physical conditioning before pregnancy
400 micrograms
This is the number that you can't take more folic acid every day when you are pregnant. Although different people have different needs for folic acid supplementation, experts also believe that folic acid supplementation is not as much as possible. If folic acid is supplemented in excess, it will be self-defeating and bring side effects. Taking folic acid tablets over 350mg may affect the absorption of zinc. Zinc deficiency can easily lead to fetal growth retardation and an increase in low birth weight infants. Some people will suffer from gastrointestinal diseases such as anorexia, bloating and nausea if they take folic acid in large quantities for a long time ... Finally, try to take folic acid and eat more green leafy vegetables.
20%
Men who smoke more than 30 cigarettes a day have more than 20% deformities, and the longer they smoke, the more deformities they have. It takes six months to quit smoking to get back to normal. If both husband and wife smoke regularly before pregnancy, harmful components in tobacco will enter the reproductive system through blood circulation, which will directly or indirectly produce toxic effects. Therefore, couples who are planning to get pregnant should quit smoking at least three months before pregnancy.
5- 10
Doing sit-ups 5- 10 times a day before pregnancy can improve pregnancy. Some women don't like sports. Some experts say that doing more foot exercise can strengthen the blood circulation in the lower abdominal cavity, reduce the discomfort caused by sedentary and avoid brain congestion. Doing sit-ups 5- 10 times a day can strengthen the strength of rectus abdominis. The weakness of rectus abdominis muscle strength is a sign of poor physical strength, which is also related to the physiological functions of ren meridian and uterus. Therefore, more exercise can enhance fertility, which is of great help to the physical load and production of pregnancy in the future.