Years back, pregnant women couldn’t find out the sex of their baby until they were born. But that is in the past. Today, the mother can know the sex of the baby, any health concerns and even the father of the unborn child. All this can be done without before the baby is born through a DNA test. How cool is that?
Now, can you do a DNA test during pregnancy? The quick answer to that is yes, but it comes in multiple tests. To be precise, a pregnant woman can only take three types of DNA tests. Let’s have a look at them, shall we?
DNA Test : Fetal Sex Test
This is one of the tests that can be done to a pregnant woman. Usually, the test will be done when you are as early as seven weeks pregnant. It is also called baby gender testing. As the name suggests, this is a test that finds out the gender of the baby.
When the fetal sex test is done, it will try to find cell-free DNA [cffDNA], which belongs to the fetus. The cffDNA can be detected in the blood of the mother at that early stage. In most cases, the fetal tests are 95% to 98% accurate. This should be done between the seventh and the 20th week of pregnancy. After 20 weeks of pregnancy, the accuracy will rise to between 97% and 99%.
Furthermore, the fetal sex test will be done after ten weeks to boost the chances of accuracy.
But you should keep in mind that a DNA test is not the same as an ultrasound. With ultrasound, you will need to wait for around 14 weeks before you can get your first. Since you have the DNA test, you can already know the sex of the baby before you book an appointment with the ultrasound.
Also, you should not replace the DNA test with ultrasound. Ultrasound helps to monitor the health and development of the unborn baby. Plus, it helps to predict the due date. A DNA test kit cannot predict your due date. That is why you should never replace the fetal DNA kit with ultrasound.
Fetal DNA test is an invasive prenatal test that will entail drawing blood that will then be used to determine the sex of the baby.
One of the significant challenges of the fetal DNA test is that it might give you the wrong results if you miscarry the same year you got pregnant. The results could be affected by the residual cell-free DNA from the previous pregnancy.
DNA Test : Prenatal Paternity Tests
Do you want to know who your baby daddy is? The Prenatal Paternity Test is here to give you the perfect results. It comes in two categories; none-invasive prenatal paternity (NIPT) tests and invasive prenatal paternity tests.
The NIPT test can only be taken after the woman is ten weeks pregnant. It is usually measured from the Last Menstrual Period [LMP]. The Non-Invasive Prenatal Paternity Test will analyze the cffDNA that is present in the blood of the mother from the ten weeks into pregnancy. It will then be compared with the DNA from a cheek swab from a possible father to find a match.
The Invasive Prenatal Paternity Tests also come in two categories; the Chorionic Villi Sampling (CVS) and amniocentesis.
The CVS test entails a needle that is inserted into the placenta. This can be through the cervix or the stomach. The aim of this is to extract some cells from the chorionic villi. This test will be done under local anesthetic to ease the pain that the mother would experience. It will be carried after 11 weeks into pregnancy.
In most cases, most pregnant women are recommended a non-invasive test. The invasive procedure is only done for a possible health concern that has already been tested with the non-invasive methods.
Therefore, you will need to use an accurate DNA testing kit to prevent giving wrong results that might force you to go for the invasive testing for no reason. Check out the reviews for the Ancenstry.com DNA testing to learn about its accuracy and if you can depend on it.
DNA Test : Prenatal Screening DNA Tests
Most of the healthcare providers will screen for three syndromes; Patau’s syndrome (Trisomy 13), Edward’s syndrome (Trisomy 18), and Down’s syndrome (Trisomy 21).
The prenatal screening DNA tests are done using a blood test that is offered between 10 and 14 weeks into pregnancy. The tests will look for proteins and hormones that are related to the syndromes named.
Researches prove that when the baby’s DNA is screened during pregnancy, it can be easier to predict if he or she will be born with specified health disorders. More or less, the protein-hormone-based blood test for the Down’s syndrome will predict the condition with around 85% and 90% accuracy. This outcome also includes a 2.5% false positive result.
A person can take the DNA screening test is she is at least10 weeks pregnant. It is not advised to take the DNA test before ten weeks into pregnancy. The cost of a private prenatal health screening will be relatively expensive at roughly $1000.
The prenatal screening tests will also require a blood sample to be extracted from the mother. This procedure should only be done by a medical professional. This is one of the DNA tests that can only be done by a medical professional hence making it very costly.
One of the negative impacts of prenatal screening is that it leads to a high rate of abortion. When the fetus is likely to have the Down’s syndrome close to 100%, the mother might be tempted to abort it. Keep in mind that the prenatal screening DNA tests can have both the positive and negative sides.
Before you take any prenatal DNA tests, ensure that you talk to your doctor for further advice and to avoid any possible inconveniences.