If you're trying to conceive or even think you might be pregnant, the wait and anticipation for a pregnancy test can be nerve-wracking—hope, worry, excitement, or fear all in one little plastic stick but before you rip open that foil package, there's something important you may be forgetting: the expiration date.

Yes, pregnancy kits do have expiry dates. And taking one which has passed that date may cause false results. This article touches on why checking that date on the kit first is important before you test, how pregnancy kits work, and what dangers such expired kits possess. Supported by expert opinion and scientific knowledge, this guide endeavors to equip you with the knowledge you require for making informed reproductive health choices.

Home pregnancy tests detect the human chorionic gonadotropin (hCG) hormone in your urine, which your body begins making shortly after the fertilized egg implants in your uterus. The test sticks use special antibodies with chemicals that have been treated to respond to hCG and report a positive finding—usually lines, plus symbols, or messages on a display.

With time, though, the delicate components break down. After the test has reached or exceeded its expiration date, the chemical reagents can no longer act dependably. That is, the test might not register hCG when it's actually there, providing you with a false negative result, or—much less often—report a false positive based on poor chemical reactions.

What Happens When a Pregnancy Test Expires?

The date of expiration on a pregnancy test is not merely a courtesy. Companies test their products extensively to find out how long the ingredients will be stable and consistent under normal storage conditions. A pregnancy test will usually be effective for one to three years from the date of manufacture.

Once that time has passed, the antibodies that are employed to identify hCG start to weaken. This weakening is subtle but significant—making the test incapable of giving accurate results. The older the test, the greater the likelihood that you'll leave with a result that doesn't accurately represent your pregnancy status.

Just as important as the expiration date is how the test is stored. According to healthcare professionals, the performance of a pregnancy test can deteriorate even before its listed expiry if it’s stored improperly.

Avoid exposing the test to heat, moisture, or direct sunlight. A bathroom medicine cabinet, while convenient, is often not ideal due to the humidity from showers and temperature fluctuations. Instead, keep pregnancy tests in a cool, dry place, and avoid unwrapping individual tests until you’re ready to use them. Unsealing the protective foil can introduce air and moisture that degrade the chemicals faster.

How to Identify an Expired Test?

Always inspect the outer package and test wrapper individually for a printed expiration date. If it is absent or smudged, better not take a risk. Also, beware of buying tests from third-party retailers or online stores where expired stock may go unnoticed.

It's also good to know that even tests just purchased can be old inventory. If you've had a test kit in your bathroom drawer for more than one year, verify the printed date before you use it.

Can You Trust an Expired Test?

Technically, it's possible for an outdated pregnancy test to return a correct result—but it's not reliable. The odds of false negatives grow more sharply with time, which can cause confusion, worry, and delay in obtaining critical prenatal care.

Under FDA recommendations, most erroneous results from past-due tests are likely to be false negatives. This may lead one to continue habits or drugs that are not best practiced in early pregnancy—or lose the opportunity to start early prenatal supplements or tests.

The effect of depending on an out-of-date pregnancy test isn't only medical—it's psychological as well. Inaccurate results can induce undue distress, confusion, or early rejoicing. Even worse, they may stall time-critical health choices like verifying the pregnancy through a physician, making blood work appointments, or starting lifestyle modifications to facilitate a healthy pregnancy.

In medical situations where time is of the essence—like watching over high-risk pregnancies or starting specific treatments—true, timely information is paramount.

Best Practices for Taking a Home Pregnancy Test

To ensure most accurate results, follow these steps:

• Inspect the expiration date before taking any test, even if the package appears new.
• Take first-morning urine when hCG is most concentrated in the urine.
• Wait until the first day of your missed period to take the test; testing earlier riskily produces a false negative.
• Take directions exactly, including timing when to read the results.
• Dispose of unused tests properly, in a dry, cool environment and in their original sealed package.

How Expired Pregnancy Tests Impact Health and Results?

Taking an expired pregnancy test can result in incorrect results, which might lead to undue confusion or undue delay in taking the appropriate next step. Here's what you should know regarding the effectiveness of an expired pregnancy test:

Increased Chance of False Negatives

One of the most significant problems with using an outdated pregnancy test is the increased likelihood of getting a false negative result. This is where the test will show that you're not pregnant when you actually are. This is due to the chemical compounds, especially the antibodies employed to identify hCG, breaking down over time, thus it becomes hard for the test to give a true result.

Degraded Antibodies

Pregnancy tests detect human Chorionic Gonadotropin (hCG), a hormone that is formed during pregnancy. After a while, the antibodies in the test, which cause a response when hCG is present, become weakened. So even if you are pregnant, the test may fail to measure the hormone at a level that is high enough.

Health Risks

As per the U.S. Food and Drug Administration (FDA), expired pregnancy tests tend to give false negatives rather than false positives. A false positive may also occur but is less so with expired tests.

Exposure to External Factors

The reliability of a pregnancy test is also affected by the way it's stored. Incorrect storage, for example exposure to sunlight, humidity, or heat, causes the components to degrade faster and results in more opportunities for getting incorrect results prior to reaching expiration.

Waste of Time and Money

Using an expired test not only reduces the likelihood of getting an accurate result but also wastes your time and money. It's best to check the expiration date before using the test and, if expired, purchase a new one for peace of mind and more reliable results.

Emotional Stress

The effect of depending on an out-of-date pregnancy test isn't only medical—it's psychological as well. Inaccurate results can induce undue distress, confusion, or early rejoicing.

Though home pregnancy tests are an efficient and convenient means of early pregnancy detection, their accuracy relies on a number of major factors, foremost among them their expiration date. Testing with one that has expired may cause emotional distress and delay medical attention at a time when it's needed most.

Misleading signs are often worse than no signs, you may be working on the symptoms when the disease is already doing damage to your body. When something goes wrong in our body, most of us can catch onto it. However, we almost always tackle the most obvious issue, not knowing there could be something worse going on.

A similar issue happens to a UK-based woman, named, Loise who was suffering with high blood pressure and dismissed it as a symptom of menopause. Soon she found out that it was in fact not menopause that she was going through, rather she had been battling kidney cancer and did not know about it.

Cancer is the leading cause of death worldwide with nearly 10 million deaths in 2020. Cancer is a generic term for many different diseases that affect parts of one's body, according to the World Health Organization. Kidney cancer is the sixth most common cancer in UK adults and 14th most common cancer worldwide. According to Cancer Research UK, the average number of cases reported for kidney cancer in 2017-19 UK was 13,834. It is also more common in the elderly, aged 80-84, and there has been a 92% rise in the incidence rates of kidney cancer since the 1990s.

Misleading Symptoms and Important Warnings

In the Kidney Cancer UK's TikTok page, Louise's highlights the critical importance of recognizing that not all symptoms in middle-aged women are solely due to hormonal changes. In her case, the elevated blood pressure was an indicator of an aggressive form of kidney cancer.

Often, kidney cancer doesn't manifest with clear and distinct symptoms, and it is frequently discovered incidentally during tests conducted for other health concerns. Louise emphasized the challenge of diagnosis, "Symptoms are unfortunately vague, especially for women, as it includes high blood pressure, night sweats, blood in your urine and flank pain. GPs often relate these to menopause symptoms." She strongly advises everyone to "regularly scan your body" and to pay attention to persistent discomfort. She urged, "How long have those niggling pains been there? Get them checked - always better to be safe than sorry!"

What To Expect After The Diagnosis?

Reflecting on her own diagnosis, Louise recounted having "high blood pressure but unseen blood" in her urine. She explained how her cancer was detected, "I was lucky routine bloods picked up an issue with my liver, prompting ultrasound."

Her treatment journey involved significant surgical interventions, "I have now had two major surgeries to remove cancer and my kidney within the last 15 months. I'm three weeks post open surgery and recovering well." The outcome of recent tests brought encouraging news, "The news that all the biopsies came back as not cancer has been amazing."

Currently, Louise is managing side effects from her immunotherapy treatment. Looking ahead, Louise remains realistic but hopeful "My cancer was the most aggressive at grade 4 so there will always be a high chance of it coming back, but medications and research is changing all the time and I have faith that the surveillance scans will help us nip anything untoward in the bud!"

Kidney Cancer Symptoms You Should Look Out For

While kidney cancer often progresses without noticeable symptoms, the NHS indicates that when they do appear, they can include:

• Blood in your pee
• A lump or swelling in your back, under your ribs, or in your neck
• Persistent pain between your ribs and waist
• Unexplained loss of appetite or weight loss
• Persistent fatigue or lack of energy
• A recurring high temperature
• Excessive sweating, particularly at night

Throughout the first week of April, the state of Kentucky witnessed flooding, due to heavy rains, specifically in the Franklin County. The reason being, it is located on the Kentucky River for over 200 years. While such natural disasters can cause distress in terms of physical safety, expert also reveals that such natural disasters could impact one's mental health too.

Natural disasters like Kentucky's recent flooding can have serious impacts on victim's mental health, reveals Christal Badour, associate professor of psychology at the University of Kentucky and a trauma recovery research.

As reported in Weku NPR, the UK psychologist explains that reactions to traumatic events typically fall into short-term and long-term symptoms. These include people feeling overwhelmed, anxiety, and difficulty communicating. While most people eventually recover without lasting effects, some may struggle for a longer duration.

These long-term issues include depression or post-traumatic stress disorder (PTSD). Badour also notes that people who already had a mental health difficulty before the natural disaster could also further feel isolated. Along with that, individuals with fewer financial resources could be at more risk of long-term problems.

Are These Long-term Symptoms Common?

According to a report from Clinical Psychology Review, 20 to 80% of people will experience long-term symptoms after a disaster. These rates could vary depending on the type of disaster one faces. PTSD symptoms often improve after the first year, however, depression and anxiety are more likely to linger.

What Do Other Experts Say?

There have been previous studies too that confirm the same. As per a 2024 study, titled Impact of Natural Disasters on Mental Health: Evidence and Implications, by Eamin Z Heanoy and Norman R Brown, notes: "Natural disasters are large-scale catastrophic events, and they are increasing in frequency and severity. Converging evidence indicates that the mental health consequences of disasters are extensive and are often associated with trauma and the disruption of personal and socioeconomic factors in people’s lives."

However, the study also notes that although most individuals who experience disaster-related traumatic events do not develop mental illnesses, some could experience adverse psychological effects of the disaster.

Another expert, Nomy Levy-Carric, MD, MPhil, writes for Mass General Brigham, which is an institute dedicated to serving the community and enhancing patient care, teaching, and research, notes that natural disaster can indeed leave a lasting impact on individuals, families, and often an entire community.

Levy Carrick notes: "A person’s reaction depends on many factors, including their past experiences, what is happening in their life at that moment, the nature of their exposure, and the support available to them as they rebuild. The sudden loss of control and uncertainty can be overwhelming, making it harder to cope in both the short and long term."

What Are The Types Of Natural Disasters?

• Hurricanes and tropical storms
• Earthquakes
• Tornadoes
• Wildfire
• Floods
• Blizzards and winter storms
• Drought and extreme heat
• Landslides and mudslides

The doctor notes the Psychological First Aid or PFA provides a structured way to support emotional recovery immediately after a disaster.

However, notes Badour, there is still a major gap in treatment. Most disaster relief services only last up to one year.

“After that year has passed, a lot of people feel like there's no one there to help them, especially if you're in a community that was already lacking in mental health support and resources,” she said.

Emily Kramer-Golinkoff, 40, today struggles to take in enough oxygen with each breath. She is living with advances cystic fibrosis, which makes simple activities like walking or showering, exhausting for her. She is one of the 40,000 Americans who are affected and are living with the most common fatal genetic disease in the United States.

As per the National Heart, Lung, and Blood Institute, cystic fibrosis is a genetic condition that changes a protein in the body. The faulty protein then affects the body's cells, tissues, and the glands that make mucus and sweat. Cystic fibrosis cause mucus to become thick and sticky. As a result, it builds up and causes blockages, damages, or infections.

While most are born with this condition and continue to be on the medication throughout, for Kramer-Golinoff's rare genetic mutation cannot be managed by the same medication that help about 90% of cystic fibrosis patients.

"For our friends who have been lifting from the sinking ship, we feel such pure joy. But we just feel so eager and desperate to join them. It is really hard to be in this minority of people left behind," Kramer-Golinoff told the Associated Press (AP).

Rare Mutation And Its Challenges

The gap between patients with common and rare mutations is a growing concern. Advances in genetic science have uncovered the precise causes behind many brutal diseases, offering treatments to some but not all. Patients with rare mutations often face fewer treatment options and a much grimmer outlook.

Market forces contribute to the problem. Drug companies tend to focus on treatments that serve the largest groups of patients. “You need a sufficiently large number of patients in a major market in order for a company to be interested in going forward,” said Dr. Kiran Musunuru, a gene editing expert at the University of Pennsylvania. He described this reality as "mutational discrimination."

Charities, including Emily’s Entourage—a nonprofit co-founded by Kramer-Golinkoff—are working to change this. Their fundraising efforts have helped jump-start gene therapy research that could benefit patients with any mutation. Although these treatments are likely years away, "just to have these therapies in trials provides so much hope," she told the AP.

To Live With Cystic Fibrosis

Kramer-Golinoff was diagnosed with this condition at just six weeks old. “As I’ve gotten older … my CF has gotten worse, despite all my best efforts to delay it,” she shared with the AP. Before her condition worsened, she earned a master’s degree in bioethics from the University of Pennsylvania, traveled, worked, and spent time with friends. But over time, she developed CF-related diabetes and other complications, including frequent infections. Since the pandemic began, she has lived in isolation with her parents in Greater Philadelphia. “CF is a real monster of a disease,” she said.

Meanwhile, newer therapies known as CFTR modulators have dramatically improved life for many cystic fibrosis patients. However, these drugs don't work for those with rare or unknown mutations, often leaving people from underrepresented groups, including Black patients, at a disadvantage.

A Ray Of Hope

One promising solution is developing "mutation agnostic" gene therapies that would work for all patients, regardless of the specific genetic mutation. “There’s a huge push to develop these therapies," said Dr. Garry Cutting of the Johns Hopkins Cystic Fibrosis Center, as reported by AP.

The Cystic Fibrosis Foundation reports that 14 experimental gene therapies are currently in development. Many aim to deliver a healthy copy of the CFTR gene to patients' cells, enabling proper protein function.

Spirovant Sciences, a company partly funded by Emily’s Entourage, is sponsoring one such therapy. The first patient received it in a 53-week clinical trial at Columbia University last November.

Despite her worsening condition—living with 30% lung function, kidney issues, and pulmonary hypertension—Kramer-Golinkoff remains hopeful. “You have to make really conscientious choices … throughout the day on how to use your limited energy,” she told the AP. “We’re incredibly excited about the promise of gene therapies. They can’t come soon enough.”