1
Egg Retrieval
2
Fertilization
3
Blastocyst
4
Genetic Testing
5
Transfer & Birth

Stage 1 – 3: From Retrieval to Blastocyst

Total number of eggs collected during retrieval
80%
Percentage of eggs that are mature and ready for fertilization (typical: 75-85%) [4]
75%
Percentage of mature eggs that successfully fertilize (ICSI: 70-80%, conventional: 60-75%) [4]
50%
Percentage of fertilized eggs that develop to day 5/6 blastocyst (typical: 40-60%) [4]
Mature Eggs
10
Fertilized
7
Blastocysts
4

Stage 4: Genetic Testing

Embryo grade affects both euploidy rates and pregnancy success. Leave at 0 to use average rates. [2][3]
Total embryos: 6
Total blastocysts sent for genetic testing (auto-syncs with grades or early stages if specified)
38 years
Affects the euploid rate (chromosomally normal) [1]
55%
Auto-calculated based on age, but you can adjust manually [1][2]
75%
For recessive conditions with both parents as carriers: typically 75% [5]

Genetic Inheritance (Both Parents Carriers)

Unaffected (AA)
25%
Usable — No disease gene
Carrier (Aa)
50%
Usable — Healthy carrier
Affected (aa)
25%
Unusable — Has disease

Expected Outcomes

2.5
Expected Usable
Embryos
2-3
Most Likely
Outcome
41%
Per Embryo
Success Rate

Complete IVF Journey Funnel

Probability Distribution

Understanding the Results

Stage 5: Transfer & Pregnancy Success

Fresh Frozen
Frozen embryo transfers typically have 5-10% higher implantation rates [6]
50%
Typical range: 40-60% for high-quality euploid embryos at age 38 [6]
75%
Accounts for miscarriage risk (typically 70-80% live birth after positive pregnancy) [7]
38%
Live Birth Rate
Per Transfer
2.6
Expected Transfers
to Success

Overall Success Probability (Combining All Stages)

At least 1 live birth from this cycle --

2 or more live births possible --

No successful pregnancy from this cycle --

Despite having usable embryos, all transfers fail to result in live birth

Sources & References