Conception as a result of the IVF procedure is just the beginning of the path. Unfortunately, it is not always possible to carry a child. The highest risk of termination of pregnancy is in the first trimester.: 12-14 weeks.
Reasons for termination of pregnancy
They are divided into two groups.: maternal factor and fetal causes. In the second group occupy a special place genetic failures of embryo development. In this case, interruption occurs most often at the time 4-6 weeks.
Women are at great risk, which have a hormonal imbalance or lack of ovaries. Carrying also depends on health and age., pregnancy management tactics by a doctor.
The reason for late termination of pregnancy sometimes lies in the immune conflict between the mother and the fetus..
Diagnostics and drugs
To identify the features of the course of pregnancy, ultrasound is recommended to be done through 3 weeks after embryo transfer. At this stage, the fertilized egg is already visible, it is possible to assess the condition of the ovaries. Ultrasound should be performed every week to monitor the dynamics of fetal development, conditions of the ovaries and uterus.
The woman herself needs to monitor her condition and immediately consult a doctor when bloody discharge appears., lower abdominal pain and any other symptoms, which make her fear.
Stimulation of superovulation causes certain hormonal changes in a woman's body, who used the IVF procedure. These shifts, without a doubt, affect the course of pregnancy. To provide hormonal support, you need to regularly check the blood for the content of two main hormones responsible for maintaining pregnancy: progesterone and estradiol. During the first weeks after embryo transfer and implantation, the progesterone level should be equal to 100-150 nmol / l, and estradiol - 5000-10000 pmol / l.
Doctors prescribe drugs to help pregnancy, which are a synthetic analogue of these hormones:
- Duphaston in the form of balls, which can be taken orally, so vaginally;
- Progesterone in the form of oil injections.
The level of estradiol in the blood is also maintained with the help of Estrofem, Прогинова, gel "Divigel", plaster "Klimara". The reception of this or that drug is prescribed strictly individually by the doctor..
Dexamethasone or Cortisol may be prescribed to prevent immune conflict. You can't do without vitamins, in particular folic acid, antihypoxic vitamins: FROM, E, b-carotene.
Risks of multiple pregnancy
Multiple pregnancies are quite common in the practice of IVF clinics.. She's risky enough, since about half of miscarriages in the early stages of gestation are caused by her. The most dangerous cases are the presence of three or even four fruits.. therefore, to keep the pregnancy, doctors usually suggest doing fetal or fetal reduction. But in this case, nature itself is sometimes the best physician..
Research has shown, that about one third of multiple pregnancies, after IVF, undergo reduction spontaneously during 8-9 weeks. The female body itself stops the development of one or more fetuses.. This process is not a miscarriage., since the remaining fruits remain viable.
There is also such a strange statistic: among women, who were able to conceive a child as a result of the IVF procedure, pregnancy during the first trimester three times more often retain those, who are seen by the doctors of the clinics, in which they underwent embryo transfer, than those, who attended antenatal clinics at the place of residence.
