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.
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 and do not successfully implant, it is also known as a “subclinical abortion”.
Causes of biochemical pregnancy
The main causes are poorly developed embryos and chromosomal abnormalities. This is more common in some women who are undergoing 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 repeatedly, it is necessary to go to the hospital for further examination: 1.
1. the fertilized egg itself is defective; (check the chromosomes of both parties)
2, ovarian luteal function is not healthy, progesterone secretion is not enough, endometrial abnormalities, affecting the fertilization of the egg; (check the six hormones)
3, uterine factors: uterine dysplasia, submucosal fibroids, endometrial polyps, uterine adhesions, endometrial tuberculosis, etc. affect the fertilization of eggs; (hysteroscopy)
4, immune factors: recent studies on immune factors have concluded that there are two immune conditions that affect conception.
(a) Homoimmunity: 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 combine or fertilized eggs cannot implant;
(b) autoimmunity: it is believed that the presence of autoantibodies to the zona pellucida in the serum of infertile women can prevent sperm from penetrating the egg after reacting with the zona pellucida, thus preventing fertilization; (blood test for immune antibodies, closed antibodies)
5, Chinese medicine conditioning: if the above tests are normal to see if Chinese medicine can find the problem; (Chinese medicine conditioning)
6, excessive mental tension, especially severe anxiety due to the lack of pregnancy, excessive psychological pressure. (relaxation)
How to confirm by yourself if it is a biochemical pregnancy
1. You can use the morning and early pregnancy test paper the 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 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 the ovulation period is wrong or late, which leads to the time after the menstruation time with early pregnancy still can not be detected, so whether it is to confirm pregnancy or early pregnancy loss, through the sustained high temperature after ovulation is a good method. This is why it is a good way to confirm pregnancy or early pregnancy loss by the duration of high temperature after ovulation.
Salient features of biochemical pregnancy
1. Early pregnancy can be detected 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 greyish-white membranous flow.
What does the meconium look like?
The embryonic tissue 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?
A 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.