Last Updated: September 3, 2026
Taking a home pregnancy tests can be stressful, especially if you’re not sure you can trust the results. Learn when and how to take a home pregnancy test and some of the potential dangers of home tests.
This Article Belongs to Pregnancy Health.
Table of Contents
When Should I Income a Home Pregnancy Tests?
Numerous home pregnancy tests claim to be precise from the first day of your missed period or even earlier. However, you’ll likely get more accurate results if you delay until after the first day of your missed period.
And why wait? Shortly after, an inseminated egg attaches to your uterine lining (implantation). Also, the placenta forms and produces the hormone human chorionic gonadotropin (HCG). This hormone enters the bloodstream and urine.
In early pregnancy, the concentration of HCG rises rapidly, doubling every two to three days. The more you take your home pregnancy test, the more difficult it is for you to detect HCG.
Remember that the time of your ovulation may vary monthly, and the fertilized egg may implant in your uterus at different times. It can affect when HCG is produced and when it can be detected. If your period is irregular, you may be miscalculating when your period is due.
Suppose it is essential to confirm your pregnancy immediately and to depend on your pregnancy’s progress. In that case, your health care provider may recommend that you have an ultrasound, repeat a urine test at a laboratory, or have a blood test to measure your HCG levels.
If your test confirms pregnancy, learning about healthy habits and common changes during pregnancy can help you prepare for the weeks ahead. You can also read about sleep during pregnancy and how sleep can change as pregnancy progresses.
Are there Diverse Types of Home Pregnancy Tests?
Place the end of a test strip in your urine stream or dip the test strip into a container of collected urine for most tests. A few minutes later, the indicator reveals the test result, often as a plus or minus sign, one or two lines, or the words “pregnant” or “not pregnant” on a strip or screen.
Follow the test instructions for how long to wait before examining the results, usually two minutes or more. Most tests also have a control indicator: a line or symbol that appears in the results window. The test is not working correctly if the line or symbol does not appear. Try again with another test.
Some home pregnancy tests are more sensitive than others. In other words, the amount of HCG that needs to be detected in the urine to produce a positive test result is lower for some tests.
Always check the test expiration date and read the instructions carefully before testing.
For reliable information about pregnancy testing and understanding test results, you can also consult the U.S. Food and Drug Administration’s pregnancy test information.
How Accurate are Home Pregnancy Tests?
Many home pregnancy tests claim to be 99% accurate. However, home pregnancy tests differ in their ability to diagnose pregnancy in women who have recently missed their period. If you get a negative result but think you might be pregnant, repeat the test about a week after your missed period or talk to your healthcare provider.
Once pregnancy is confirmed, prenatal care becomes important for monitoring both maternal and fetal health. During pregnancy, healthcare providers may use different forms of monitoring, including fetal heart monitoring when medically appropriate.
Can Medications Interfere with Test Results?
Fertility drugs or other HCG medications can interfere with the results of home pregnancy tests. However, most medications, including antibiotics and birth control pills, do not affect the accuracy of home pregnancy tests.
If pregnancy is confirmed, speak with your healthcare provider before starting, stopping, or changing any medication.
Can a Positive Result be False?
Although rare, it’s possible to test positive on a home pregnancy test when you’re not pregnant, and it is called a false positive.
A false positive can occur if you had a miscarriage soon after the fertilized egg attached to your uterine lining (biochemical pregnancy) or if you take a pregnancy test too soon after taking fertility drugs containing HCG. An ectopic pregnancy, menopause, or problems with the ovaries can also contribute to misleading test results.
If pregnancy is confirmed, understanding how your body changes throughout each stage can be helpful. For example, you can learn more about seven months of pregnancy and the physical changes that may occur during this stage.
Can a Negative Result be Wrong?
It’s possible to get a negative result on a home pregnancy test when you’re pregnant. It is called a false negative. You can get a false negative if:
Test too early. The sooner a home pregnancy test is done after a missed period, the more difficult it is for the test to detect HCG. Repeat the test one week after a missed period for more accurate results. If you can’t wait, speak with your healthcare provider about other testing options.
Once pregnancy has been confirmed, maintaining comfortable and healthy sleep habits can become increasingly important. You may find our guide to sleeping positions during pregnancy useful as your pregnancy progresses.
Nutrition is another important part of prenatal health. After confirming pregnancy, it is useful to understand which foods may carry potential risks. Our guide to foods to avoid during pregnancy can provide additional information.
