Taco Bout Fertility Tuesday · Episode Tool

From eggs retrieved to embryos

See how each IVF checkpoint compounds. Move the sliders to match your own numbers as they come in.

Age at egg retrieval (or age when the eggs were frozen)

Sets the starting euploid estimate below. You can still adjust that slider.

Eggs retrieved

Mature (MII): 75% of retrieved

Normally fertilized (2PN / 2PB): 75% of mature

Reach blastocyst: 50% of fertilized

Chromosomally normal (euploid): 50% of blastocysts

Only relevant if you plan genetic testing (PGT-A).

The sliders start at placeholder values so you can see how the checkpoints stack up. They are not predictions. Replace them with your own clinic's numbers as each step reports in, because every percentage varies by person and by cycle.

Why the numbers shrink at every step

IVF is a series of checkpoints, not one event: retrieved, mature, fertilized, embryo, blastocyst, chromosomally capable, implants, baby. Starting with more eggs does not change that each step has its own drop-off.

Educational only. This shows how percentages compound across steps. It cannot predict your own results.