If you are pregnant and considering adoption but are unsure who the father of your baby is, you are not alone. This is a much more common situation than many people realize, and it doesn’t prevent you from making an adoption plan for your child. New Jersey law accounts for situations involving unknown or unidentified fathers, and there are legal steps that your adoption agency and attorney will take to make sure the process moves forward properly.

How New Jersey Defines Paternity
Before diving into what happens when a father is unknown, it’s best to understand how New Jersey classifies fathers in the context of adoption. The law recognizes several types:
- A legal or presumptive father is a man who was married to the birth mother at or around the time of conception or birth. If you are married, your husband is presumed to be the legal father of the child, even if he is not the biological father. His consent to the adoption will be required unless the court determines he is not the natural father.
- An acknowledged father is a man who has signed a Certificate of Parentage with the birth mother, typically at the hospital at the time of birth. In New Jersey, an unmarried father is not considered the legal father unless this certificate has been signed or a court has entered a paternity order.
- A putative father is a man who claims to be (or is alleged to be) the biological father of the child but whose paternity has not been legally established. New Jersey does not maintain a statewide putative father registry the way some states like PA do, so identifying and notifying a putative father typically relies on the information the birth mother provides and a diligent inquiry conducted by the agency or attorney.
What Happens When the Father Is Unknown?
When a birth mother does not know the identity of the father, the adoption can still proceed. New Jersey law requires that a diligent inquiry be made to identify and notify the father, but it also provides a path forward when that is not possible.
If you do not know who the father is, you will likely be asked to provide whatever information you can, even if it is limited. You may be asked to share details about the circumstances of conception, including any physical description, name, nickname, general location, or occupation of anyone who could potentially be the father. This is not meant to be invasive or judgmental. It is a legal step that helps the court determine whether any man has a claim to paternity that must be addressed.
If no father can be identified after a diligent inquiry, the court can proceed with the adoption. The judge may order that notice be given to an “unknown father” through publication in a local newspaper. This is called service by publication. It is a legal formality that satisfies the requirement to provide notice, even when there is no specific person to notify.
If no one comes forward in response to the published notice, the court can move ahead with terminating the unknown father’s parental rights and finalizing the adoption.
What If There Are Multiple Possible Fathers?
If you believe there could be more than one possible father but are not certain which man is the biological father, that situation can also be handled within the legal framework. Your adoption attorney and agency will work with you to determine what steps need to be taken. In some cases, each potential father may need to be notified or given the opportunity to claim paternity. In others, genetic testing may be recommended.
The important thing to know is that having more than one possible father does not disqualify you from making an adoption plan. It may add a few extra steps, but your legal team will manage those details so you can focus on your decision and your wellbeing.
What If the Father Is Known but Uninvolved?
This is another common scenario. You may know exactly who the father is, but he may be absent, unresponsive, or unwilling to participate in the adoption process. New Jersey law addresses this as well.
If a known father has been notified of the adoption proceedings and fails to respond, fails to appear at the hearing, or fails to submit a written objection within the required timeframe, the court can enter a judgment terminating his parental rights. Under New Jersey’s adoption statute (N.J.S.A. 9:3-37 et seq.), a father who has not taken steps to establish parental rights and does not respond to notice of the proceedings can have his rights terminated so the adoption can proceed.
In other words, a father’s refusal to engage does not give him the power to block the adoption. The law protects your ability to make a plan for your child, even when the father is not cooperative.
What If the Father Objects?
If a father does come forward and objects to the adoption, the situation becomes more complex, but it is not necessarily a dead end. The court will evaluate his claim and determine whether he has established a legal right to custody or whether grounds exist for involuntary termination of his parental rights.
Factors the court may consider include whether the father has taken steps to establish a relationship with the child, whether he has provided financial support, and whether termination of his rights would serve the best interests of the child. Every case is different, and this is an area where having experienced legal representation matters.
Your adoption agency and attorney will prepare you for this possibility and advocate on your behalf throughout the process.
Your Decision Still Matters
No matter what the paternity situation looks like, the most important thing to understand is this: not knowing who the father is does not take away your right to make an adoption plan for your baby. New Jersey law has built-in procedures for handling unknown, unidentified, and uncooperative fathers. These procedures exist specifically so that a birth mother’s ability to make a thoughtful, informed decision about her child’s future is not held hostage by circumstances beyond her control.
You deserve to explore your options without fear that the process will fall apart because of something you cannot control.
You Have Support
At Adoption ARC, we have walked alongside birth mothers in every kind of paternity situation imaginable for over 30 years. Whether the father is unknown, uninvolved, uncooperative, or simply uncertain, we know how to navigate the legal process and make sure your rights and your child’s future are protected.
If you are considering adoption and have questions about how paternity might affect your plan, our counselors are available 24/7 to talk it through with you. You can learn more about your options or contact us anytime. There is no cost, no obligation, and absolutely no judgment.
Important Disclaimer
The information in this blog post is intended for general educational purposes only. It is not legal advice, and adoption laws can vary based on your specific circumstances and the county in which your case is filed. For guidance tailored to your situation, please consult with a qualified adoption attorney or a licensed adoption agency.
The legal information contained in this blog post should be reviewed by a licensed adoption attorney familiar with New Jersey law before publication. Adoption laws are subject to change; please verify current requirements with a qualified legal professional before making any decisions.
The Child Welfare Information Gateway, a service of the U.S. Department of Health and Human Services, is a helpful resource for understanding adoption laws and birth father rights state by state. If you do not currently have an attorney or are unsure where to start, Adoption ARC can connect you with the legal support you need at no cost to you.

