Pregnancy tests today feel almost ordinary. A tiny stick, a few quiet minutes, and an answer. But the path to that simplicity took thousands of years.
Across millennia, people tried everything from seeds to animals to onions in the search for early certainty, driven by one of the most human of impulses: to know what the body was doing before science could measure it.
Long before hormones were discovered, ancient cultures relied on whatever clues they believed the body might reveal. In some places, that meant watching what happened when urine met grains. In others, it meant examining the eyes, the breath, or the colour of urine. These methods sound strange now, but they were rooted in a very human desire to understand what was happening inside the body at a moment that carried enormous emotional weight.
One of the most famous early methods came from ancient Egypt, where people would urinate on barley and wheat seeds over several days. If the seeds sprouted, pregnancy was assumed. It sounds like folklore, but modern researchers later found that pregnancy hormones can indeed influence seed germination.
Other cultures took more imaginative routes. Some early Greek physicians believed that placing a pungent ingredient inside the vagina overnight could reveal pregnancy based on whether the scent travelled through the body. Centuries later, European practitioners studied the eyes for signs of hollowness or fatigue, convinced that pregnancy left visible traces there. And for a long stretch of history, specialists known as “urine readers” examined colour, texture, and even the way urine settled in a container to make their predictions.
The real shift came in the early 20th century, when scientists discovered that pregnancy hormones could be detected in urine. The catch was that the test required injecting that urine into animals — often frogs, mice, or rabbits — and observing their reproductive response. The most iconic version involved rabbits, which is how the phrase “waiting for the rabbit to die” became shorthand for pregnancy results. At the time it was considered a scientific breakthrough, even though the process could take days, required a full laboratory, and was at least a bit ethically questionable.
Everything changed again in the 1960s and 70s, when researchers developed tests that could detect pregnancy hormones without animals. This opened the door to faster, more accurate, and far more private testing. The first home pregnancy test arrived around this time, a kit that looked more like a miniature science experiment than the sleek sticks we know today, but it represented something revolutionary: the ability to know at home, without waiting, without labs, without rabbits.
From there, the evolution accelerated. Tests became smaller, quicker, and more accurate. Digital screens replaced faint lines. Early-detection windows expanded. What once required a lab, a technician, and a sacrificed rabbit now fits in a bathroom drawer and delivers results in minutes.
That transformation is easy to take for granted. A tiny device detecting microscopic hormonal shifts and delivering life-changing information almost instantly. The culmination of thousands of years of ingenuity, guesswork, and gradual discovery. Even the most everyday objects often have the most remarkable pasts.
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BUMP & baby is New Zealand’s only magazine for pregnancy and early babyhood. Our team of mums and mums-to-be understand what it’s like to be pregnant in this connected age, and that’s why BUMP & Baby online is geared toward what pregnant women and new mums really want to know.
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