Show An early pregnancy test can read positive as soon as 11-15 days after conception, 1 day after a missed period An early pregnancy test can read positive as soon as 11-15 days after conception, 1 day after a missed period. However, more accurate results can be obtained 2 days after a missed period. A home pregnancy test detects the presence of human chorionic gonadotropin (hCG), which is produced in a pregnant woman. Traces of hCG can be seen in urine 3-4 days after the fertilized egg implants in the uterus, and the amount doubles every 48 hours. When there is enough hCG in the body, a pregnancy test can detect it and produce a positive result. If your periods are irregular, however, and your test result is negative, you should repeat a home pregnancy test after 1 week. How accurate are home pregnancy tests?Home pregnancy tests are quite reliable and usually 99% accurate. However, it is critical to carefully follow the instructions on the package.
Here is how the tests work:
What can cause a false-positive pregnancy test result?In rare cases, a false-positive outcome can be caused by:
Other reasons for a false-positive result include:
SLIDESHOW16 Early Signs & Symptoms of Pregnancy: Could You Be Pregnant? See SlideshowWhat tests are done to confirm pregnancy?In addition to false-positive results, a home pregnancy test may show a false-negative result, especially if you tested too early or if the kit was defective. In order to confirm the results of a home pregnancy test, talk to your doctor to undergo additional tests. Your doctor may order urine or blood tests:
If pregnancy is confirmed, an abdominal ultrasound can be done to assess the development and health of the fetus. When should you see a doctor?Regardless of your pregnancy test results, consult your doctor if you develop any of the following symptoms:
If your home pregnancy test result is positive, you should see your doctor to both confirm the pregnancy and begin prenatal care. Latest Health News
Trending ArticlesMedically Reviewed on 3/8/2022 References Image Source: iStock Images American Pregnancy Association. What is HCG? https://americanpregnancy.org/getting-pregnant/hcg-levels/ Betz D, Fane K. Human Chorionic Gonadotropin. [Updated 2021 Aug 11]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022. https://www.ncbi.nlm.nih.gov/books/NBK532950 Memon N. How Soon Will a Pregnancy Test Read Positive? MedicineNet. https://www.medicinenet.com/how_soon_will_a_pregnancy_test_read_positive/article.htm |