One of the most frequently asked questions by couples undergoing IVF treatment is:

“If the first attempt didn’t succeed, was something necessarily overlooked?”

This question is very understandable. Because when a process in which effort, hope, and time have been invested does not result in pregnancy, it naturally brings a search for a reason. However, the most important point to emphasize from the very beginning is:

Not every failed IVF attempt necessarily means that there was a deficiency.

Sometimes biological processes, statistical probabilities, and nature’s own selective mechanisms are at play. However, this does not mean that no analysis will be conducted. On the contrary, every result provides us with data and offers the opportunity to plan the next step more consciously.

Why Is Success Not Guaranteed on the First IVF Attempt?

IVF is a method that supports nature’s complex process in a laboratory environment. However:

• Genetic structure of the embryo
• Biological receptivity capacity of the uterus
• Hormone balance
• Microscopic cellular interactions are not completely controllable.

Even in the younger age group, the success rate is not 100% on the first attempt. Therefore, not achieving pregnancy in the first attempt is often related to the nature of the process.

Key Areas to Be Evaluated

When an attempt does not yield the desired result, three main categories are systematically reviewed:

Embryo Factor

One of the most important determinants of success is the genetic health of the embryo.

• Was the chromosomal structure of the embryo known?
• On which day was the transferred embryo?
• Was it affected by the freezing–thawing process?

The embryo may appear to be of good quality; however, it may be chromosomally abnormal. This possibility increases especially in the advanced age group.

In some patients, genetic evaluation (PGT) may be considered. However, this is not automatically necessary for every patient. The decision is made by taking into account age, the number of embryos, and the number of previous attempts.

Uterine (Endometrial) Factor

No matter how healthy the embryo is, implantation may not occur if the uterine environment is not suitable.

Points to be reviewed:

• Endometrial thickness and structure
• Progesterone initiation timing
• Medication protocol used
• Was a natural cycle or a hormone-supported protocol applied?

Sometimes, even just changing the uterine preparation strategy can make a difference in the next attempt.

Additionally:

• Polyp
• Submucosal fibroid
• Chronic endometritis
• Conditions such as thin endometrium should be evaluated.

Strategy and Protocol Factor

Not every patient is the same. The same protocol does not yield the same result in every patient.

Especially:

• In patients with PCOS
• In patients with diminished ovarian reserve
• A personalized approach is required in patients over 40 years of age.

The data obtained from the previous attempt are very valuable:

• How many eggs were retrieved?
• How many embryos were formed?
• What was the quality of the embryo(s)?
• How was the hormonal response?

This information serves as a guide for the next attempt.

If the first attempt does not yield results, should one lose hope?

Absolutely not.

In many couples, success is achieved in the second or third attempt. Cumulative success rates are significantly higher than the rate of a single attempt.

What is important:

• To conduct a calm and objective analysis
• To avoid undergoing unnecessary testing
• To identify truly modifiable parameters
• To make science-based decisions

Although it is an emotionally challenging process, this stage is often not the end of the journey, but a more informed beginning.

So, what can be done differently in the next attempt?

The answer is different for every patient. However, the following questions must always be evaluated:

• Is genetic analysis of the embryo necessary?
• Should the uterine preparation protocol be changed?
• Should the timing of the transfer be optimized?
• Should lifestyle factors be adjusted?
• Could a chronic illness have been overlooked?

The goal is to optimize the process.

Conclusion: Not a Deficiency, but an Analysis

The question “Is there a deficiency?” is an understandable one.

However, the approach should be as follows:

Every unsuccessful attempt is data to better plan the next step.

The embryo is evaluated.

The uterus is evaluated.

The strategy is reviewed.

And most importantly: An effort is made to understand why the process did not yield the desired result.

In vitro fertilization (IVF) treatment is a journey.

Sometimes the first step does not lead to the goal.

However, the next step taken with the right analysis may be much closer to success.