I used to believe that fertilization was the most important factor, but now I prioritize the number of euploids instead
.
In the first Egg Retrieval, 8 eggs were collected, all 8 were fertilized, and 3 embryos survived until Day 5/6. Following PGT-A testing, 2 embryos were identified as mosaics and 1 fresh embryo transfer was unsuccessful. The second Egg Retrieval resulted in 8 eggs collected, 7 were mature and fertilized, and 2 embryos survived until Day 5/6 with one being confirmed as PGT-A normal.
It is uncommon to achieve a 100% fertilization rate, so I was happy with my 83% rate during my IVF process.
I retrieved 36 eggs, with 30 maturing and 20 fertilizing. From those, 10 reached blastocyst stage, 6 normal and 3 mosaic. This was my second retrieval at age 35 with PCOS.
During my first two rounds, all of the eggs were fertilized, but in the third round only around 60% were fertilized.
Even though 90% of the eggs were fertilized, only 4 out of 17 were euploid. This shows that the fertilization rate is not a reliable predictor of euploids. My attrition rate was also very typical.
92% of the eggs were mature, with 13 out of 14 showing signs of maturity.
My first retrieval resulted in 5 mature eggs, 3 fertilized, 2 blasts with 1 aneuploid and 1 LLM, which I attribute to potentially being caused by COVID. However, my second retrieval had 10 eggs, 7 mature, 5 fertilized, and 3 euploid blasts, showing improvement.
19 eggs were retrieved, out of which 17 were mature and 15 were successfully fertilized, representing an 88% success rate.
All of my mature eggs were successfully fertilized at age 40. In the first round, we used ICSI, and in the second round, we included ZyMot due to high attrition from fertilization to blastocyst formation in the first round.
I was the same age as you when I had my eggs collected at 32. Out of the 8 collected, 6 fertilized and 5 became blasts, which is a success rate of around 60%. Despite having adenomyosis, I have no known issues that would affect the quality of my eggs.
80% may be considered average, but ultimately, it is not the most important factor. What truly matters is the end result.
I had a total of 13 fertilized eggs, but only 7 of them successfully fertilized. I was initially devastated and concerned that something was wrong. However, out of those 7 fertilized eggs, only 3 made it to the blastocyst stage. Despite the low number, all 3 were of high quality. Today, I received positive results with my first transfer.
At 31 years old, with a good history of fertility, this outcome is a hopeful sign for the future.
I was informed that typically, 70% of retrieved eggs are fertilized and half of those make it to day 5.
Out of sixteen mature eggs, eight were successfully fertilized, resulting in a 50% fertilization rate. Three of these embryos developed into blastocysts, and all three were euploid.
My fertilization rate was 85%, and I also experienced unexplained infertility, leading to the decision to undergo ICSI.
In each of my 5 rounds, my performance has consistently been at around 50%.
I underwent two retrievals for banking/FET this year and both times I was 35 years old. Male factor infertility was a bigger issue than we initially thought, so we made adjustments for the second round. The first retrieval resulted in 34 retrieved, 29 mature, 17 fertilized, 6 blastocysts, and 3 euploid embryos. The second retrieval produced 52 retrieved, 43 mature, 26 fertilized, 19 blastocysts, and 15 euploid embryos.
14 mature eggs were obtained, 12 of which were fertilized. There was a significant decrease in numbers resulting in 3 embryo blasts sent for testing. All 3 were euploid, which was a positive outcome, but the decrease from 12 to 3 caused worry at the time.
At the time of retrieval, I am 31 years old and undergoing IVF because my husband’s vasectomy reversal was unsuccessful. Out of the 50 eggs retrieved, 36 were mature, 22 were fertilized, and we now have 14 high-quality untested embryos.
Achieving 100% fertilization is uncommon - while it is a positive outcome, it is more of an anomaly than the norm. When considering IVF, it can be likened to a funnel or inverted triangle. At the top, you have the number of eggs retrieved, which will decrease as not all of them will be mature. Following that, the number of eggs that successfully fertilize after ICSI will be even lower. The number continues to decrease as you look at the blast rate, or the number of embryos that reach the blastocyst stage. If you opt for PGT testing, the number will once again decrease as not all embryos will be chromosomally normal. I hope this explanation is helpful ![]()