What is a biochemical pregnancy? After fertilization, the egg is sent to the uterine cavity by peristaltic movement of the fallopian tubes. It takes about 3 to 4 days from the time the egg is fertilized to the time it is delivered to the uterus, and the fertilized egg remains free in the uterine cavity for another 2 to 3 days. During this process, the fertilized egg divides and proliferates, gradually forming a mass of cells called the embryo sac or blastocyst. About 7 to 8 days after fertilization, the blastocyst reaches its proper place in the uterine cavity and “takes root” in the endometrium, a process called implantation of the egg. This process is called “subclinical miscarriage”. A biochemical pregnancy is one in which the sperm and egg are united, but do not return to the uterus for implantation, or if they do return, they do not successfully implant. The main causes of biochemical pregnancy are poorly developed embryos and chromosomal abnormalities. This is more common in some women who have undergone IVF. However, most women do not go to the hospital for examination and do not care about it, so they ignore it as a delayed menstruation, but in fact it is a spontaneous miscarriage. Do not be alarmed if a woman of age encounters such a situation, as it is the result of natural elimination and usually does not affect the next pregnancy. If this happens several times, you should go to the hospital for further examination: 1, the fertilized egg itself is defective; (check chromosomes of both sides) 2, the ovarian corpus luteum is not healthy, progesterone secretion is insufficient, endometrial abnormalities, affecting the fertilized egg’s bed; (check hormone six) 3, uterine factors: uterine dysplasia, submucosal fibroids, endometrial polyps, cavity adhesions, endometrial tuberculosis, etc. affect fertilization; (hysteroscopy) 4. immune factors: recent studies on immune factors have concluded that there are two immune conditions that affect conception. (1) Alloimmunity: sperm, seminal plasma or fertilized eggs are antigenic substances that are absorbed by the vagina and uterine epithelium and produce antibody substances through immune reactions, so that sperm and eggs cannot unite or fertilized eggs cannot implant; (2) Autoimmunity: it is believed that autoantibodies to zona pellucida exist in the serum of infertile women, which can prevent sperm from penetrating eggs after reacting with zona pellucida, thus preventing fertilization; (blood test for immune antibodies, blocking antibodies) 5. Chinese medicine: If all the above tests are normal, we should see if Chinese medicine can find the problem; (Chinese medicine) 6. Excessive mental tension, especially severe anxiety and psychological stress due to lack of pregnancy. (Relaxation) How to confirm for yourself if it is a biochemical pregnancy? 1. You can use the morning and early pregnancy test paper one day before your period to see if there is a faint test line. Generally, you can see the test line 14 days after ovulation, and you can confirm whether there is a possibility of biochemical pregnancy by observing whether the color of the test line gradually deepens. 2, confirmed by the duration of high temperature after ovulation day: in general, biochemical pregnancy is bleeding about 20 days after ovulation, if it is bleeding 14-16 days after ovulation, it is definitely menstruation, so if the date of ovulation is determined, the sustained high temperature after ovulation for more than 18 days can basically determine that it is a good pregnancy, but after that and bleeding is biochemical pregnancy. If there is no menstruation after the menstruation time and there is no test line on the early pregnancy test paper, there are two possibilities, one is not pregnant, endocrine disorder causes the wrong period, the other is pregnant but because of the wrong ovulation period or the late bedtime this month, so that after the time of menstruation with early pregnancy still can not be detected, so whether it is to confirm pregnancy or early pregnancy loss, through the continuous high temperature after ovulation This is why it is a good method to confirm pregnancy or early pregnancy loss by the duration of high temperature after ovulation. The significant characteristics of biochemical pregnancy 1. Early pregnancy can be measured as weak positive, but it is difficult to reach positive, much less strong positive. 2. The ultrasound cannot see the gestational sac in the uterus. 3.The blood HCG value is very low, which can only indicate pregnancy, but not whether the pregnancy is successfully established. 4. Generally, the pregnancy will not exceed 50 days and will be spontaneously aborted. There will be a grayish white meconium flowing out. What does the meconium look like? The embryonic tissue that is shed is white, like the size of your fingernail, and sometimes it is wrapped in a blood clot, which cannot be seen without washing the clot with water. When can I get pregnant again after a biochemical pregnancy Biochemical pregnancy is a subclinical miscarriage and should be distinguished from other miscarriages due to illness or accidents. If it is a biochemical pregnancy, once in a while, it will not have a major impact. It can return to normal after the menstrual transition and will not affect future pregnancies.