What is the process of conception
Generally speaking, the number of weeks of pregnancy starts from the first day of the last menstruation, which is conducive to calculating the expected delivery period, but in fact, before the implantation, the baby can not be said to be pregnant. Therefore, we must understand the whole process of conception.
The combined fertilized egg will swim in the fallopian tube for 2-3 days. After several divisions, it becomes a group of embryonic cells with 8-16 cells, which have not been classified. It entered the womb with joy. It's like a warm paradise full of delicious food. When the fertilized egg arrives here, it will be caught by the seaweed like ribbon of the uterus, and then it will be stuck with the mucus of the uterus, so mothers don't have to worry about the fertilized egg falling out of the uterus.
In the fourth to sixth days after fertilization, the fertilized egg has not yet taken root and settled in the womb. It floats and floats in the womb, fully absorbs nutrients and continues to divide until it becomes a head and tail cell classified blastocyst. At the beginning of the 7th day, the healthy blastocyst cells grow a bit like a small tail, which is used to drill into the wall of the mother's uterus, and then develop into the umbilical cord connected with the mother.
On the 7th to 10th day, the blastocyst found a suitable and comfortable position in the uterine wall (usually the fundus, but more in the posterior wall, less in the anterior wall). Then the drill bit began to pierce the mother's uterus and drill into it, so some mothers would feel the pain in the lower abdomen from time to time, which would last for several days, maybe the small cells were planted in the right and left exploratory positions. At the same time, some mothers will also have a little bonus blood on their underwear, which is the blood flowing from the place where they are drilled. At this time, the small cells can become blastocysts, which have divided into nearly 100 cells, and began to secrete their own chorionic hormone hCG. And more secretion with the increase of days It's not until the embryo bud and the embryo heart come into being that it's a real embryo ...
A few days after conception
The first part introduces the process of conception, which is the general situation. Most people from fertilization, to the implantation of fertilized eggs, to the measurement with early pregnancy test paper, generally in about 10-12 days, but there are also special situations for individual people. On mom's website, some mothers can test it out in 7 days when they are getting pregnant. It is also possible from a scientific point of view.
Meiya 520: last ovulation on the 23rd, ovulation on the 12th, weak on the 13th, and grey on the 20th! I can't believe it,
Mother's net friend 'syzf9130': today is the seventh day after ovulation. This morning, I was curious to see two prints. The second one is still visible though the powder is very shallow.
The fertilized egg has no connection with the mother before implantation, so we have no way to know its existence. After implantation, the outer trophoblast cells of the fertilized egg produce a proteolytic enzyme, which dissolves the endometrium in contact with it, and the pregnant egg is embedded in the functional layer of the endometrium. At this time, the syncytiotrophoblast will develop and extend many cell processes, presenting a uniform villous shape, which is called fluffy. So the hormone it secretes has a very strange name - chorionic gonadotropin (hCG). Now, we can calculate exactly how many days after AA we can detect the presence of this hormone!
After fertilization, the period from fallopian tube to uterus is 4-5 days, and the period of stay in uterine cavity is 3-4 days, which takes 7-9 days in total. Therefore, if you use the sensitive (15 international units) early pregnancy diagnosis box, it will take about 7 days after the ovulation day AA; it is very normal and reasonable to use the general early pregnancy test paper (25 international units) to detect hCG about 12 days after ovulation ...
Is early pregnancy test paper one deep one shallow pregnant
Many pregnant women on the forum of mom.com have encountered the situation that the test paper of early pregnancy is deep and shallow. Do they have it or not? If the control line is clear and the color of the test line is light, it means that they may be pregnant, not necessarily pregnant. In this case, you need to use the new early pregnancy test paper every two days to collect the morning urine for retest. So, a deep and a shallow pregnancy test paper means you may be pregnant, but don't be too happy too early, because it may not be pregnant, with a 50% chance of each.
There are four possible causes for the test paper of early pregnancy: one is deep, the other is shallow
1. If the pregnancy is just or has ectopic pregnancy, such as ectopic pregnancy, the hCG level in the body is generally low, and the color band in the detection area only appears faintly, which will also lead to a deeper and shallower test paper of early pregnancy.
2. In exceptional cases, such as hydatidiform mole and choriocarcinoma, the hCG level in the body will be too high, and the urine test will not show positive.
3. After 3 months of pregnancy, hCG level decreased, and urine test sometimes showed negative or weak positive.
4. The early pregnancy test paper is too sensitive. During the ovulation period, the hCG and LH of women will reach the peak, and they will return to the normal level after ovulation. However, these two values will rise a little before the next menstruation. If the early pregnancy test paper used is too sensitive, it is easy to show a shallow detection line. Therefore, if the test paper is deep or shallow, it may also be "cheat beard". It is recommended that you buy another test paper after 3 days and retest it. If the color deepened, congratulations on your winning the prize. Hurry to the hospital to check the blood HCG for official confirmation.
Best time to test pregnancy
When can we test pregnancy? Generally speaking, women can test whether they are pregnant within a week to 10 days after the actual pregnancy.
Once the male sperm and the female egg combine to form the fertilized egg, the fertilized egg will secrete a special substance called hCG in the placenta of the pregnant woman about 7-10 days after the implantation of the endometrium, which is often referred to as hCG in medicine. It only exists in the body of the pregnant woman. About a week after the pregnancy, the human chorionic gonadotropin will It will appear in the urine of pregnant women, but in the first few days of pregnancy, the secretion of this substance is less, and it is not easy to be measured. Generally, it is obvious 10-14 days after pregnancy.
Generally speaking, about 18 days after living a normal couple's life, you can judge whether you are pregnant by testing urine, especially morning urine. After the couple's sexual life, you can test whether you are pregnant in the earliest week and the latest about 3 weeks.
What to measure pregnancy after conception
How long can early pregnancy be detected? The detection of pregnancy depends on what tool you choose.
Generally speaking, in house and hospital testing, hospital testing can get results earlier and more accurately. Early pregnancy test paper is generally used in home test. Here are some common methods to test pregnancy for you!
First, pregnancy test
Use the early pregnancy test paper to detect, use the early pregnancy test paper, the earliest 7 days after rooming can detect, generally 18 days can detect, a few more than 20 days can detect. 7-10 days after menstruation is to make the test results more accurate. The best test time should be 18 days after the same room, or 7-10 days after the next menstruation delay.
Second, basic thermometry
The basic body temperature is measured by the method of basic body temperature measurement, and the body temperature is measured in the bed after waking up every morning. At this time, the body temperature is called the basic body temperature. Generally, the body temperature before ovulation is below 36.5 degrees, and the progesterone increases after ovulation, which acts on the body temperature center to increase the body temperature by 0.3-0.5 degrees. If the egg fails to fertilize, the progesterone will decrease and the body temperature will return to normal about one week later; if the egg is pregnant, the progesterone will remain at a high level and keep the body temperature at a high level. The high temperature curve in the basal body temperature lasts for more than 18 days, which can generally confirm the early pregnancy.
Third, hCG test in blood or urine
Can be the first diagnosis of accidental pregnancy. When the fertilized egg is implanted into the uterus, a new hormone, called chorionic gonadotropin, is produced in the body of pregnant women. The hormone can be tested in the urine about 10 days after conception. The blood test of early pregnancy is to detect the amount of hCG in your blood, not in your urine. Blood tests can detect very small amounts of hormones, so they can detect pregnancy earlier than urinalysis (usually about 6-8 days after ovulation) ...