First screening. It is done between 11-14 weeks of pregnancy. A blood sample is taken to test for any possible risk for birth defects.
Chorionic villus sampling(CVS). Not every pregnant mother takes this test. It is only done if you are the at-risk age group that is above 35 years, there is a history of genetic condition running in the family, or the baby is at risk of congenital disabilities. In this case, a tissue of the placenta is taken for examination.
Carrier screening. At times you might not have a health condition, but when a test is done, you are found to be a carrier of a condition that is a health risk to your fetus. For this type of test, your saliva or blood sample is taken and screened.
Ultrasound. It is used to calculate the weeks of your pregnancy.
Cell-free fetal DNA test. This test is applicable to women who have had a baby with a congenital disability, a congenital disability is detected on an ultrasound, or there’s a pregnancy history of twins/triplets. Your blood sample is taken to determine if the baby has any genetically related conditions.