Pregnancy & Baby Index: Pregnancy - Experts: Can paternity be discovered during pregnancy?

Can paternity be discovered during pregnancy?

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David Barrere, MD

The question: I'm not sure who my baby's father is. Can we find out during pregnancy?

David Barrere, MD, FACOG, answers:

Paternity testing can be accomplished safely after delivery by obtaining blood from the baby and the prospective fathers and making a comparison analysis (blood type, DNA). This is the safest and, overall, the best option.

During pregnancy, such testing is not advised, because obtaining blood from the baby is quite dangerous. For example, a procedure called PUBS (percutaneous umbilical blood sampling) can be used to obtain blood from the baby; however, umbilical cord laceration (cuts) and exsanguinations (bleeding) are potential risks. This procedure is reserved for identifying anemic babies who require blood transfusions while still within the uterus.

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Notice: This information is for educational purposes only, and addresses only non-urgent questions of a general nature. If you are concerned about your health or your baby's health, please consult your family's health care provider immediately. This information is not a substitute for personal medical attention, diagnosis or treatment. Due to the volume of questions received, not all questions can be answered.

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