Our comprehensive guide outlines what you need to know about paternity testing once a baby is born.
Read the full article below.
At a glance
- A paternity test is a type of DNA test used to verify paternity after a baby is born.
- The test requires cheek (buccal) swab DNA samples from the potential father and the child and is a safe non-invasive way of establishing paternity.
- The test can be performed on anyone of any age, including newborn babies, older children and adults.
- An AlphaBiolabs paternity test looks at up to 45 DNA markers – double the industry standard – to identify which half of the baby’s DNA is inherited from the potential father.
- Reasons you might need a paternity test include for emotional closure/peace of mind or medical reasons (i.e. having access to a complete and accurate family history).
Table of contents
- Why is it important to establish paternity after the child is born?
- When should I consider doing a paternity test as soon as the baby is born?
- How soon can you DNA test a baby?
- Do hospitals do a paternity test after birth?
- How does a paternity test work on a baby that has recently been born?
- How are the DNA samples collected?
- How much does it cost to get a paternity test after a baby has been born?
- How soon will I receive my test kit?
- How quickly will I receive my results?
- Where can I buy a paternity test after birth?

Why is it important to establish paternity after the child is born?
It is important to establish paternity after a baby is born for several reasons:
- Emotional closure – where there are questions surrounding paternity, finding answers to those questions can provide peace of mind for everyone involved and help create stronger family bonds.
- Medical reasons – having access to a complete and accurate family medical history can play an important role in making informed healthcare decisions.
- Legal purposes – establishing paternity can be a requirement of custody and child support arrangements, or even inheritance claims.
When should I consider doing a paternity test as soon as the baby is born?
In situations where it is unclear who the baby’s biological father is, doing a paternity test as soon as the baby is born can remove any doubts and ensure that the relationship between the father and the child gets off to the best possible start.
However, we appreciate that the subject of paternity is a highly sensitive and personal issue that can have a significant impact on families.
Before doing a paternity test, it is worth considering your personal circumstances and how the outcome of the test might impact upon family relationships.
In some cases, it may be a good idea to seek counselling to help all parties deal with the aftermath of the results.
How soon can you DNA test a baby?
A DNA paternity test can be done immediately following birth and any time afterward.
Probability of paternity is determined by taking buccal (cheek) cells collected from the potential father and the baby and then comparing the DNA from the baby with that of the potential father.
The cheek cells are collected using a cotton swab – like a Q-tip – which is very quick and painless and should cause no distress to the baby.
Call Now to get your Paternity Test: 727-325-2902Do hospitals do a paternity test after birth?
Hospitals do not typically perform paternity tests at birth as part of routine care. While both parents may be asked to provide information for the baby’s birth certificate, this process does not involve DNA testing.
If you need confirmation on who the biological father is after the baby is born, you will need to arrange a paternity test through an accredited laboratory.
A simple cheek swab from the baby and the potential father is all that’s needed for a paternity test after birth, making it a quick and painless process.
Options for paternity testing after birth include:
- Peace of mind/informational tests – these tests can provide clarity as to who a child’s biological father is, but the results are for your information only and cannot be used for legal purposes.
- Legal/court-admissible paternity tests – where paternity is disputed, a legal paternity test can provide clarity, and allows you to change the father’s name on a birth certificate, or provides additional evidence for child support/custody disputes or social security benefits.
It’s easy to order a peace of mind paternity test online, direct from our ISO 17025 and BBB-accredited laboratory.
If you require a paternity test for legal reasons (amending the name on a birth certificate, wills/inheritance disputes etc.) you’ll need a legal DNA test.
How does a paternity test work on a baby that has recently been born?
All our peace of mind paternity tests are performed in the same way, whether the child in question is a new-born baby or an adult.
Our paternity testing works by comparing a child’s DNA profile with that of the potential father(s).
The test analyzes up to 45 DNA markers to identify which half of the baby’s DNA is inherited from the potential father.
Every person inherits half of their DNA from each of their biological parents, so this comparison can help us to establish the probability of paternity.
When testing the biological father of the baby, both will share identical sections of DNA at each marker. When the man tested is not the biological father, this will not be the case.
How are the DNA samples collected?
It’s important to note that a paternity test cannot be performed without the consent of all parties involved in the testing.
Any person over the age of 16 submitting their samples for testing must provide their own written consent (a signature) before a DNA test can be performed.
For children under the age of 16, only parental consent is needed to use their DNA for testing. This consent must be provided by a person with parental responsibility for the child.
To do a paternity test, buccal (cheek) swabs are used to collect cheek cells containing each person’s DNA. Your kit will contain one swab for each person taking the test – one for the potential father and one for the child.
Once you have received your paternity DNA test kit and completed the enclosed test request/consent form, you can then take the test. The mouth swabs simply need to be rubbed firmly on the inside of each donor’s cheek for at least 20 seconds to collect cheek cells.
These swabs are then sealed inside the individual test sample envelopes provided in your kit, before being posted back to our laboratory for analysis.
How much does it cost to get a paternity test after a baby has been born?
An AlphaBiolabs Paternity DNA Test costs just $89 (to test one child and one potential father).
Your secure, password-protected results will be emailed to you in 3 business days after we have received your samples at our laboratory.
You have the option to test up to five potential fathers and five children when placing your order (additional charges apply).
How soon will I receive my test kit?
We mail out your kit the same day you order it. You can choose to receive your kit by USPS Standard or Express Mail.
As soon as we receive your DNA samples, we begin the testing process at our accredited laboratory.
Order a Home Paternity Test Kit OnlineHow quickly will I receive my results?
For just $89, you’ll receive your secure, confidential results via email within 3 business days of your samples arriving at our laboratory.
Where can I buy a paternity test after birth?
AlphaBiolabs’ at-home Paternity DNA Test provides the most accurate way to determine paternity after a baby has been born.
Need to order a paternity test? Buy now online or email info@alphabiolabsusa.com and a member of our Customer Services team will contact you soon.
You can also use our Live Chat to speak to a support specialist today or call us on 727-325-2902 for confidential advice on which test is best for you.