On what day of the cycle, the embryo is transferred into the womb during IVF: embryo transfer, replanting of frozen embryos, take the egg

Before you become a customer of reproductive medicine clinic woman to ask a question about how is the procedure of artificial insemination, and what day of the menstrual cycle, the embryo is transferred into the womb IVF. This date is not fixed on the doctor's decision may affect these or other factors. Let us in this article, which determines the date of the transfer, and other nuances of the selection of the day of fertilization.

How is IVF

Needless to in vitro fertilization is important stages before and after embryo transfer:

• schema definition or protocol;
• hormonal treatment selection;
• stimulation generation ova;
• support oocyte maturation;
• puncture of follicles;
• culturing embryos;
• embryos transfer into the uterine cavity;
• hormonal support implantation;
• pregnancy test;
• Conception confirmation.

Taken together, these steps will determine the exact date of replanting and the subsequent manipulation.

find out protocol schema in a natural cycle IVF Article link.

What is the stimulation of

Stimulate ovulation in cases where pregnancy does not occur due to the inability of the ovaries to generate a mature egg. Direct indication for stimulation - the absence of conception for 6 months or more.

The main task of the procedure - under the influence of certain drugs to help the body to develop a good egg and provide a gap follicular sac.

When do stimulation

On what day of the female cycle begin stimulation IVF, is a schema, or rather the protocol that is the procedure. It picks up the reproductive system on the basis of the patient's health, the state of its cycle, the presence of a failed podsazhivaniya embryos in the past, of body weight.

There are several protocols:

Ultra-short

Is assigned with 2, 3 or 5 days and lasts for 8 to 12 days. Characterized by the smallest load on the female body and a minimum number of negative consequences.

Short

The procedure begins simultaneously with blockade pituitary (first 2-3 days of menstruation) and lasts for as much as in the long scheme vitro fertilization. Activation of follicle rupture occurs by injection of human chorionic gonadotropin for 36 hours before the puncture.

Long

With gonadotropin preparation cycle 3-5 days for two weeks (17 days). A day or two after the drug withdrawal is a stimulating injection.

super-long

It looks like a long IVF scheme, but the drugs are administered over several months. Injections are administered 1 time every 28 days. Stimulation is assigned after confirmation of positive changes in the body. Most often this occurs after 60-90 days after the regulatory phase of IVF.

The exact date of ovulation activation selects the physician. You can not call certain day without knowing the medical history of the individual patient. Therefore, these issues need to ask your doctor.

selection period eggs

On what day of the cycle, take the egg IVF is not defined by a rigid timetable, and readily sexual female system. Even under the influence of hormonal injections, each body reacts differently to the regulatory and catalytic phase.

Therefore, to determine the exact date of the puncture can be only after the ultrasound monitor. Normally, the daily increase in the follicular sac is about 0.1-0.2 cm. Also taken into account the thickness of the mucous layer of the uterus, which is to obtain a three-layer structure.

After confirming all the favorable conditions for 36 hours before the puncture is an injection of hCG. On the example of the protocol specifying days:

• long (12-22);
• short (14-20).
• ultrashort (10-14).

Also there are special activities for the prevention of premature ovulation. Further possible number of embryos that can be grown in artificial conditions, will depend on the number of oocytes obtained.

Do not worry, because the doctor will warn you puncture a few days. The procedure itself is in the IVF program is displayed as 1 day.

Fertilization

Before replanting of embryos necessary to carry out artificial insemination. On what day do IVF cycle depends on the time of the puncture. In most cases, reproductive system performs the process of fertilization in 4-6 hours after taking the female biological material. This will be the beginning of the embryonic period.

After 16-18 hours of specialist assesses. If it turned a lot of good embryos, you can think about freezing. Cryo freezing can reduce the negative impact of hormones, which are used in stimulating ovulation. Therefore, if the first embryos were hoisted, but they do not like, you can repeat the process in the next cycle, but without exhausting HRT.

It is vital that embryologists do not make any mistakes. How successful will be able to transfer frozen embryos will depend on the clinical experience and knowledge krioperenosa protocol.

When a transfer

On what day of the cycle do embryo transfer with IVF depends on the rate of development of embryos and their quality, as well as a history of the patient. Most often the beginning of replanting embryos is assigned to the third or fifth day of cultivation.

In the female uterus typically carry a pair of embryos, which are in excellent condition. Many experts advise implanting blastocyst is. They have a higher chance of implantation, as well as the risk of multiple pregnancy is significantly reduced.

Procedure for transplanting the embryos assigned for 6-8 hours from start of ovulation. But due to the fact that when hormone therapy, there are many unforeseen situations (displacement unwillingness mucosa) doctors monitor and may allocate a different time of the implantation window. It is enough to remember:

1. Positive Ovulation Test is a must.
2. Next, take into account the age of the embryos.
3. The final decision shall be taken after the ultrasound results.

Learn about features month after IVF Article link.

What's next

Before releasing the patient home after the embryo transfer, the doctor will decide on the admission. Under the supervision is recommended for women whose complications were found. Under normal circumstances, the expert will give regular advice and prescribe the appropriate hormonal support.

It is important to understand that determine pregnancy is possible not earlier than two weeks after the procedure.

Low hCG in 1 day delay after IVF failure does not mean, nor confirms the attachment of the embryo. According to the results of this analysis confirmed only biochemical pregnancy. The final answer to the question can be obtained after the US in the third week after IVF.

It is necessary to eliminate any feelings because negative emotions can badly affect the result of fertilization. Therefore it is very important to maintain emotional stability, more rest and any problems visit your doctor.
The article gives a sample answers, so the information can not be used for every occasion. Embryo transfer when the body is ready for the procedure and the endometrium has the necessary thickness and structure. Therefore, all the stages of fertilization, embryo development and subsequent feelings better to discuss with your doctor.