Can I do a paternity test while I'm pregnant?

There are a lot of things to do during pregnancy. In addition to ensuring that you can maintain a happy mood, a regular life, and a comprehensive diet, you also need to add a lot of nutrients during pregnancy for your body and the baby in your belly. Most people know that they need to take B-ultrasound when they are pregnant, so many people will ask, can paternity testing be done during pregnancy?

Can paternity testing be done during pregnancy?

DNA testing can be done before the fetus is born. After a period of pregnancy, the sperm and egg combine to develop into test tube embryo tissue with DNA information. Moreover, the test tube embryo tissue will exchange certain substances with the amniotic fluid of the pregnant woman bathing therein. Therefore, the amniotic fluid of pregnant women contains a lot of cells that have fallen out of the embryonic tissue in the test tube. These cells contain the DNA information of the fetus. Therefore, prenatal DNA testing of pregnant women can use amniocentesis to collect the amniotic fluid of pregnant women to obtain the fetal DNA and compare it with the DNA of the undetermined father to achieve the purpose of DNA testing. Moreover, the test results of this evaluation method are consistent with the evaluation results after the fetus is born.

Depending on the stage of pregnancy, a DNA sample from the fetus can be obtained through an amniocentesis procedure.

The following report mainly shows the operation process, sample types and sampling opportunities of this method.

Sampling time

Sample types within 16-24 weeks of pregnancy

The procedure for sampling fetal cells from the amniotic fluid of pregnant women is to determine the sampling time through routine physical examination. The obstetrician and gynecologist uses B-ultrasound to obtain the amniotic fluid of the pregnant woman with a hollow needle.

The samples that need to be presented for prenatal DNA testing are: fetal sample (amniotic fluid of pregnant woman), mother's DNA sample, and assumed father's DNA sample. Here we would like to remind customers that amniocentesis has certain risks to the fetus.

This type of examination must be carried out with the consent and participation of the pregnant woman, and must be carried out under the guidance of a gynecologist in a regular hospital. It is best to be carried out in addition to other gynecological amniocentesis. Also, please remember to contact our sales representative in advance before conducting amniocentesis to ensure that all your inspection steps are safe and smooth.

1. FAQ: If the pregnancy is more than 7 weeks, B-ultrasound confirms that the length of the embryo has reached 1b250m, and the embryo and initial heart rate can be seen. After maternal blood screening, if it is a boy, a minimally invasive DNA test before delivery in Hong Kong can be done.

2. Have given birth to a boy within six months, or had an induced abortion or miscarriage within three months (because the gender of the fetus must be determined first when doing minimally invasive DNA testing before delivery in Hong Kong, because the baby's mineral DNA will enter the mother's blood, so there will be errors in the gender test of the fetus)

3. If you have had a transplant, blood test, intravenous injection, etc. within one year, you cannot do this (transplant, blood test, intravenous injection or the like may carry the Y chromosome gene, which will make the fetal gender test inaccurate).