I want to add my name to my sons birth certificate.

How old is the son? Why was he not on it, to start with?

But you will have to most likely get a DNA test by a lab approved by the court and get a court order for it, to be added.

What happened at birth? You were the mother, correct?

Hi

First, you have to establish that you are the parent by filing in court. The only other option is to have the other parent agree to allow yourself to be claimed as the parent

I do not know about the laws in your state, but here in South Carolina the website for the Department of Health and Environmental Control states:

"If there is not a father listed on your child's birth certificate and you were not married at the time of your child's birth or anytime during the pregnancy but later marry the father and want to have his name added to your child's birth certificate, you can request what is called a 'legitimation' of birth. Legitimation is a legal process that establishes the father of a child born out of wedlock as the child's legal father.

You can start that process at your nearest Vital Records office or the DHEC State Vital Records Office in Columbia. You will need to provide a certified copy of the marriage license, and both you and the child's father will have to sign a statement called an 'affidavit' in the presence of a notary. You will also need to request a certified copy of the birth certificate.

Applying by Mail

If you and the father cannot visit a Vital Records office together, you may submit your request by mail. You will need to mail us the following:

Your request for a birth certificate and a statement saying that you want to add the father to the birth certificate
A certified copy of your marriage license (this will not be returned to you)
A phone number where you can be reached between 8:30 a.m. and 5 p.m.

DHEC staff will review and determine if legitimation can be completed. If the father can be added, an affidavit will be mailed. Both parents will need to sign it in the presence of a notary and return the signed document with the $15 amendment fee."

https://www.scdhec.gov/vital-records...th-certificate