What Types of Pregnancy Screening Tests Should I Have?
Pregnancy screening tests are typically performed during the first and second trimesters to determine if the baby is developing normally or is likely to have certain birth defects and to screen for health conditions that could be dangerous to the mother or the baby. Examples of some common pregnancy screening tests include:
- Ultrasounds to check the size, position, and general development of the baby
- Blood tests for Rh compatibility
- Blood tests for syphilis, hepatitis B, and HIV
- Blood tests for gestational diabetes
- Blood tests for group B streptococcus
Many of the tests are available at your local MD Now Clinic. Depending upon your age and other risk factors, your provider may recommend more advanced tests to check for Down syndrome and other genetic abnormalities.
Should I Have a Gestational Diabetes Test?
Even non-diabetic women can develop high blood sugar during pregnancy, which is known as gestational diabetes. The condition is primarily caused by the hormonal changes that occur during pregnancy that affect the way the body responds to insulin; however, weight gain, an increase in fat deposits, and a decrease in physical activity may also play a role. Gestational diabetes normally resolves on its own following birth, but it can cause a number of complications, including high birth weight, premature birth, and an increased risk of preeclampsia. Although a gestational diabetes test is recommended for all pregnant women, it is especially important for women with the following risk factors:
- A history of prediabetes or gestational diabetes
- A family history of type 2 diabetes
- A history of polycystic ovary syndrome or other hormone disorders
- Being over the age of 25
- Excessive weight gain during pregnancy
- Previously giving birth to a baby weighing over 9 pounds or that had a birth defect
- Previously having an unexplained miscarriage or stillbirth
- Being of Asian, African, American Indian, Pacific Islander, or Hispanic descent
How Early Can I Take a Pregnancy Test?
Most pregnancy tests can detect a pregnancy 10 to 14 days following conception; however, it is best to wait until the week after your missed period for the most accurate result. If you don’t want to wait until you have missed a period, it is a good idea to at least wait until one to two weeks after you have had sex to give time for the egg to implant and your body to develop detectable levels of the pregnancy hormone known as hCG or human chorionic gonadotropin.