How Do Pregnancy Tests Work?

Taking a pregnancy test is usually the quickest and most reliable way to find out whether you’re expecting. Indeed, whether you're experiencing early pregnancy symptoms or simply want peace of mind, understanding how pregnancy tests work can help you use them correctly and get the most accurate result.

What Does a Pregnancy Test Detect?

A pregnancy test works by detecting human chorionic gonadotropin (hCG), a hormone that your body starts producing after a fertilised egg implants in the uterus. The amount of hCG increases rapidly during the first few weeks of pregnancy, making it an excellent marker for testing.

Most home pregnancy tests use a urine sample to detect hCG. If the hormone is present above a certain level, the test will show a positive result.

How Early Can You Take a Pregnancy Test?

Some highly-sensitive pregnancy tests can detect hCG as early as six days before your missed period, although testing this early may not always produce an accurate result because hCG levels are still likely to be very low.

For the most reliable result, it's generally recommended to test from the first day of your missed period or a few days afterwards.

If you're wondering how soon after sex you can take a pregnancy test, it's important to remember that pregnancy doesn't begin immediately after intercourse. Implantation typically occurs six to 12 days after ovulation, and only then does hCG begin to appear. This means taking a test just a day or two after unprotected sex is unlikely to provide a meaningful result.

After How Many Days Can a Pregnancy Test Be Done?

As a general guide:

• Around 10–14 days after ovulation, many women have enough hCG for detection.
  
• For the highest accuracy, test after you've missed your period.
  
• If your result is negative but your period still hasn't arrived, repeat the test after 48 hours, as hCG levels double approximately every two days in early pregnancy.
  

Can You Get a False Negative Pregnancy Test?

Yes… And it's more common than a false positive.

A false negative may happen if:

• You've tested too early.
  
• Your urine was diluted because you drank a lot of fluids beforehand.
  
• The instructions weren't followed correctly.
  
• The test had expired.

Testing with your first morning urine often gives the most accurate result because hCG is usually more concentrated.

Do Ectopic Pregnancies Test Positive?

In most cases, yes. An ectopic pregnancy still produces hCG, so an at-home pregnancy test will often show a positive result. However, hCG levels may rise more slowly than in a typical pregnancy.

If you receive a positive pregnancy test and experience severe abdominal pain, dizziness, or vaginal bleeding, seek immediate medical attention, as an ectopic pregnancy is a medical emergency.

When Can You Do a Pregnancy Test?

The best time depends on your menstrual cycle. For the most accurate result:

• Test from the first day of your missed period.
  
• Use your first morning urine whenever possible.
  
• Follow the instructions included with your pregnancy test carefully.

If you're unsure about the result, repeat the test after two days or consult your healthcare professional.

Choosing A Pregnancy Test In Malta

There are many options available if you're looking for a pregnancy test in Malta. One example is the ElleTest Pregnancy Test, which is designed for reliable early detection at home. It can detect pregnancy up to six days before a missed period when hCG levels are sufficient and is over 99% accurate from the day your period is due.

For those who prefer the convenience and privacy of shopping online, the ElleTest Pregnancy Test is available online. At Botika, we offer online ordering with no minimum purchase requirement and free delivery across Malta and Gozo, making it a convenient option for anyone who prefers not to purchase a pregnancy test in person.

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