Just for context, numbers I have been told from multiple fertility doctors are:
20-30% of eggs extracted will fertilize and grow to day 5 blastocysts (aka embryos). The rest will die before reaching day 5.
If the eggs were preserved before the women turned 35, each blastocyst has a roughly 70% chance of being chromosomally normal (which means it is a "good, viable embryo"). For women above 35 years old, the percentage of viable blastocysts goes down (e.g. for a 40 year old, ~40% of blastocysts are viable). This is why is it is important to preserve eggs early.
Each chromosomally normal day 5 blastocyst has about a 50% chance to result in a live birth after it is transferred.
So... if you are 35 years old and start with say 12 frozen eggs, you are maybe going to end up with 2-3 viable day 5 embryos, which are likely to turn into 1.5 children.
Note that this presumes everything is in working order with the woman's reproductive system. Egg quality issues or other issues can make the probabilities for each step decrease.
20-30% of eggs extracted will fertilize and grow to day 5 blastocysts (aka embryos). The rest will die before reaching day 5.
If the eggs were preserved before the women turned 35, each blastocyst has a roughly 70% chance of being chromosomally normal (which means it is a "good, viable embryo"). For women above 35 years old, the percentage of viable blastocysts goes down (e.g. for a 40 year old, ~40% of blastocysts are viable). This is why is it is important to preserve eggs early.
Each chromosomally normal day 5 blastocyst has about a 50% chance to result in a live birth after it is transferred.
So... if you are 35 years old and start with say 12 frozen eggs, you are maybe going to end up with 2-3 viable day 5 embryos, which are likely to turn into 1.5 children.
Note that this presumes everything is in working order with the woman's reproductive system. Egg quality issues or other issues can make the probabilities for each step decrease.