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Prenatal CVS/Amnio Paternity Test - Who's the Dad Pre-birth

  • We arrange all appointments for you
  • CVS or Amnio Sample Collection at our central London Clinic (additional fee)
  • Fast 7-10 Business Days Results
  • ISO Accredited
Prenatal Paternity Testing

DNA Worldwide provide the world’s most advanced prenatal CVS/Amnio paternity test accurately establishing the biological father before the child is born.

We have a dedicated foetal medicine centre in London that focuses solely on prenatal DNA testing. Here, we employ the UK’s leading foetal medicine specialists who carry out thousands of prenatal DNA tests every year.

A genetic sample using CVS or Amniocentesis, and a mouth swab sample from both the mother and alleged father is required to complete the test.

The UK’s leading foetal medicine specialists carry out the prenatal test at our London clinic. The result will be either 100% exclusion of paternity, or up to a 99.99999% positive inclusion and proof of paternity. We are fully ISO: 17025 accredited and ISO: 9001 certified.

We understand the importance of confidentiality, if you have any concerns, or would like to discuss the process, our dedicated team will be happy to help you.

To successfully take your DNA samples, an added £350 fee will be required. This is the fee charged by our experienced team at the London prenatal clinic.

If you need a prenatal paternity test for legal purposes, or would like to know the difference, please find more information here


Help and Guidance

How to Organise your Prenatal Paternity DNA test

  • DNA Worldwide recommend you contact us on 01373 751 078 for an Expert Consultation and to go through the details of the prenatal testing process.
  • Once agreed, DNA Worldwide will work with you to arrange a suitable appointment to have the CVS or Amniocentesis samples collected. This is normally within a few days.
  • Before the appointment, the mother blood type must be provided to the foetal specialist. Two passport photos and a photo ID must be provided by each person attending the appointment. 
  • DNA Worldwide will arrange to collect by courier the samples for testing at our laboratory and issue the results in 10-12 days.

Understanding DNA Test Results


What is the process?

  • DNA Worldwide and our dedicated foetal medicine centre in Harley Street, London, have conducted thousands of prenatal CVS DNA Tests.

  • Each test is carried out by taking a genetic samples during pregnancy using CVS or Amniocentesis and a mouth swab sample from the mother and the potential father.

  • The process is carried out by the UK's leading foetal medicine specialists. 

  • All samples are sent by courier to our laboratory for testing. 

  • The result of the prenatal DNA test will either be a 100% exclusion of paternity, or up to a 99.99999% positive inclusion and proof of paternity.


Common Questions

What happens if it is not possible to carry out a CVS?

It is not always possible to perform a CVS procedure (which is normally done between the 12th to 14th week) due to the position of the placenta, this affects approximately 5% of patients. If this is the case then the only option is to wait until 16 weeks gestation, which is the earliest an Amniocentesis procedure can be carried out or you can choose to use our non-invasive prenatal test. You will be charged for the professional scanning and consultation time instead of a full CVS. Lab fees still apply.

Is prenatal paternity testing for twins possible?

Yes. If you wish to carry out a CVS or Amnio during a twin pregnancy then additional fees will apply for the foetal sample collection laboratory process.

It is worth considering that the chances of having separate pregnancies from two different fathers are rare, however cannot be excluded. 


All staff at DNA Worldwide, their Laboratory and the Foetal Clinic are bound by strict confidentiality. The results will only be provided to the nominated individuals requested. 


Common Questions (Continued)

What is the difference between amniocentesis and chronic villus sampling?

Whilst these two test are fundamentally similar, they are performed in different ways. Amniocentesis testing is performed 16 weeks after gestation and involves extracting a small amount of amniotic fluid from the sac surrounding the foetus. CVS testing is performed 10 weeks after gestation and involves removing a small sample of cells from the placenta.

What are the risks involved?

When performing a CVS prenatal paternity test, the risk of miscarriage is 1%, and when performing an Amniocentesis procedure, the risk of miscarriage of 0.5%.

What other prenatal tests are available?

Using the same genetic samples, we are able to offer a range of testing for various genetic disorders at the same time as your prenatal paternity test. (Additional lab fees apply).

For instance; you may have had a high risk result from your Down’s Syndrome screening or are simply seeking reassurance that all is well with your baby.