This calculator helps users understand the probability of achieving a live birth based on the number of eggs they choose to freeze and the success rate of each egg. It serves as a critical resource for those considering their fertility options, offering a scientific and quantitative approach to what can often be an emotional decision.
Formula of BWH Egg Freezing Calculator
The formula used by the BWH Egg Freezing Calculator is straightforward yet powerful:
Success Rate per Egg is the likelihood that a single frozen egg will result in a live birth, typically derived from clinical data and personalized factors. Number of Eggs refers to how many eggs an individual decides to freeze, a decision influenced by personal goals and medical advice.
Table of General Terms and Standard Calculations
Below is a table that simplifies the understanding of how different variables might affect the outcome without needing to perform the calculation each time manually:
| Age Range | Average Success Rate per Egg (%) | Estimated Eggs for 75% Success Chance |
|---|---|---|
| Under 35 | 12 | 20 |
| 35-37 | 10 | 30 |
| 38-40 | 5 | 45 |
| Above 40 | 3 | 70 |
This table provides a quick reference to gauge the number of eggs one might consider freezing based on typical success rates and desired outcomes.
Example of BWH Egg Freezing Calculator
Consider a scenario where a 34-year-old woman wants to calculate her chances of having a baby through egg freezing. Using an average success rate per egg of 12%, and deciding to freeze 20 eggs, the calculator would yield:
Probability of Live Birth = 1 – (1 – 0.12)^20 ≈ 0.93 or 93%
This example illustrates a high probability of live birth, demonstrating the utility of the calculator in planning and decision-making.
Most Common FAQs
The average success rate per egg varies significantly based on age, health, and other factors. Generally ranging from 3% to 12%.
The number of eggs to freeze for a good chance of success depends on age and individual success rates. Typically between 20 to 70 eggs as illustrated in our table.
Yes, age plays a crucial role in the success of egg freezing. Younger women typically have a higher success rate per egg, which decreases with age.