Genetic Analysis

Genetic Analysis

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There's still a chance you were conceived via IVF. But we've checked your mom's college yearbook photos, and whether or not she and your father had sex, it's clear that ... listen, I know this is hard for you.

Special 10th anniversary edition of WHAT IF?—revised and annotated with brand-new illustrations and answers to important questions you never thought to ask—coming from November 2024. Preorder here!