Margaret Crane invented the at-home pregnancy test in 1967 at age 26 while working as a freelance de

Margaret Crane invented the at-home pregnancy test in 1967 at age 26 while working as a freelance designer at Organon, but signed away all patent proceeds for a dollar she never received.

The Predictor test first launched in Montreal in 1971 because U.S. pharmacy laws prohibited pharmaci

The Predictor test first launched in Montreal in 1971 because U.S. pharmacy laws prohibited pharmacists from handling bodily fluids, making Canada the test market of choice.

Crane's design won out over competitors not on merit alone but because she personally sourced cheape

Crane's design won out over competitors not on merit alone but because she personally sourced cheaper plastics manufacturers across New York City, undercutting rival prototypes on cost.

How pregnancy tests went mainstream

The Hustle·Sunday, March 22, 2026·7 min read

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Margaret Crane, a 26-year-old freelance product designer at pharmaceutical company Organon, invented the at-home pregnancy test in 1967 after spotting lab pregnancy tests and insisting women could perform them independently. Despite designing the working prototype, sourcing cheaper manufacturing, and driving the product to market, she signed away all patent proceeds to Organon for a symbolic dollar she never received. The 'Predictor' launched in Montreal in 1971, transforming women's reproductive health while Crane went unrecognized and uncompensated for decades.

Key Facts

Margaret Crane invented the at-home pregnancy test in 1967 at age 26 while working as a freelance designer at Organon, but signed away all patent proceeds for a dollar she never received.
The Predictor test first launched in Montreal in 1971 because U.S. pharmacy laws prohibited pharmacists from handling bodily fluids, making Canada the test market of choice.
Crane's design won out over competitors not on merit alone but because she personally sourced cheaper plastics manufacturers across New York City, undercutting rival prototypes on cost.

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