- Amniocentesis: Usually performed between the 15th and 20th weeks of pregnancy, this procedure involves taking a sample of the amniotic fluid surrounding the fetus. - Non-Invasive Prenatal Testing (NIPT): A blood test that can screen for certain genetic conditions as early as 10 weeks into the pregnancy. - First Trimester Screening: A combination of ultrasound and blood tests to assess the risk of chromosomal abnormalities.
