Pregnancy Test at Night : Are Late Night Results Accurate?

You’re eager to take a pregnancy test, but you want to be sure that you get the most reliable results possible. What you’re wondering most is whether it is okay to take a test at night.

Don’t worry! In this article, we answer all of the most pressing pregnancy test timing questions.

How Home Pregnancy Tests Work

Most home pregnancy tests consist of a stick that must either be dipped into a container of urine or held under a stream of urine. These tests are designed to test pee for a hormone called human chorionic gonadotropin (hCG).

Detectable levels of HCG are excreted by the placenta as early as the first week following implantation 1pubmed. However, it usually takes between 10 and 14 days for the hormone to be detected by a urine test. HCG levels are highest during the first three months of pregnancy but decline after that. Most home pregnancy tests detect hCG levels between 20 and 50 milliunits 2wexnermedical.edu.

Many home pregnancy tests claim to be 99% accurate when taken after the first following a missed period. However, not all women have regular periods. Not to mention, this two-week period can feel like a lifetime for women who are hopeful for positive test results.

Understanding hCG (Human Chorionic Gonadotropin)

According to the American Pregnancy Association, hCG levels less than 5 mIU/mL (milli-international units per milliliter) are deemed negative for pregnancy. HCG levels may range from 5 to 50 mIU/mL during the first three weeks following a menstrual period. Meanwhile, they reach an all-time high between weeks 13 and 16. Since hCG levels vary so much, doctors rarely use them to estimate the date of conception.

When is the Best Time to Take a Pregnancy Test?

Most medical professionals will advise you to wait until at least a day after your missed period to take a pregnancy test. You can decrease your chance of getting a false negative by taking a test first thing in the morning.

Urine contains the highest concentration of hCG first thing in the morning. hCG levels double every two days until the last days of the first trimester 3fda.gov.

Other than a missed period, early signs of pregnancy include breast tenderness, nausea, fatigue, and increased urination. However, these signs and symptoms are not enough to confirm a positive pregnancy. If you believe you are pregnant, you should wait until you miss your period to take a home pregnancy test.

How Accurate are the Results?

It is difficult to dispute a positive pregnancy test. However, there may be reasons for you to not trust early results.

When tests are taken too early, there is not always enough detectable hCG in a woman’s urine. If you missed your period and believe you may have received a false negative, take a second test a week after your missed period.

Since hCG levels multiply rapidly during the first weeks of pregnancy, you can take a pregnancy test at any time of the day once you’re several weeks past your expected and missed ovulation period.

Most at-home pregnancy tests claim to be 99% accurate. However, many factors could hinder test results, including medications, epitopic pregnancies, miscarriages, test timing, and testing methods 4 Nhs.uk .

What if You Can’t Take a Test in the Moring?

Sometimes a woman is unable or unwilling to wait until the morning to take a pregnancy test. If you insist on taking a test a pregnancy test before the morning, try to generate first-thing-in-the-morning hCG levels by avoiding urination for several hours before taking a test. On top of that, avoid over-hydrating, as excess h2O is likely to reduce the amount of HCG in your urine.

Blood Pregnancy Tests

A blood test can confirm a pregnancy as early as 10 days after a missed period 5 myclevelandclinic . Serum tests are proven to be 99% accurate. More importantly, these tests can be taken at any time of the day. Moreover, they can be used even before a missed period. 

However, you must visit a qualified medical practitioner to get a blood test. Most women only seek out blood tests after missed periods or positive home pregnancy test results.

Pregnancy Test F.A.Q.

Here are some of the answers to the most frequently asked questions regarding at-home pregnancy tests.

Can I take a pregnancy test in the early morning hours?

If you’re too anxious to wait until your morning alarm goes off, you may be wondering if there is any other way to recreate your first-thing-in-the-moring hCG concentrations. Feel free to take a test in the early morning hours or even during the day if that’s when you typically rise from sleep. Just make sure that you use the first urine that you eliminate after waking. If you are taking a pregnancy test at night or super early in the morning during early pregnancy, you might get a negative result.

Is that a negative result certain?

There is always a chance that not enough pregnancy hormone was detected, or you misestimated the date of your next anticipated period. If you suspect the negative result is wrong, wait a few days before taking another one. Or else, reach out to your doctor.

What do I do if I get a positive result?

Once you receive a positive test result, you should reach out to your doctor for advice on what to do next.

How accurate are pregnancy tests when taken at night?

HCG levels vary significantly throughout the day. The hCG concentrations in a woman’s urine are usually the lowest at night. This is because she has likely to have urinated and drunk liquids throughout the day. For this reason, tests taken at night do not always yield accurate results.

Wrapping Up

When you’re trying to conceive, the weeks leading up to and follow a missed period can feel like a lifetime. You can optimize the timing of your pregnancy test to ensure that you do not get a false negative. Taking a pregnancy test at night is not 100% reliable during early pregnancy. If you’re not sure of your results, consider having your doctor take a blood test.

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