Is it possible to know that you are pregnant if undergo pregnancy test even just one week delayed?

Yes, it is possible to know that you are pregnant if you undergo a pregnancy test even just one week delayed. However, the accuracy of the test may depend on the sensitivity of the test and the timing of the test.

Generally, pregnancy tests work by detecting the presence of human chorionic gonadotropin (hCG) in the urine or blood. hCG is a hormone produced by the placenta during pregnancy. The level of hCG in the body increases rapidly in the early stages of pregnancy, doubling about every two to three days.

Most home pregnancy tests are designed to detect hCG levels that are typically present in the urine about 10 to 14 days after ovulation. This means that if you take a pregnancy test one week after your period is delayed (assuming you have a 28-day cycle), there should be enough hCG in your urine to be detected by the test.

However, it is important to note that some tests are more sensitive than others, and some women may produce hCG at different rates. If you take a test too early, the hCG levels may not be high enough to be detected, even if you are pregnant.

To ensure the most accurate results, it is generally recommended to wait at least one week after your missed period before taking a pregnancy test. If the test result is negative but you still suspect you may be pregnant, it is a good idea to repeat the test a few days later or see a healthcare provider for a blood test, which can detect hCG levels earlier than urine tests.