WIBTA if I demand a DNA test on my ex’s baby?
Picture a chance encounter in a supermarket aisle, where a 26-year-old man spots his ex-girlfriend with a 3-month-old baby and suspects he might be the father. Their month-long relationship ended last summer, but the timeline and the baby’s birth weight raise questions. She refuses a DNA test, leaving him torn between his desire to “step up” as a dad and her resistance to his involvement. Now, he’s wondering if pushing for a test would make him the bad guy.
This Reddit story dives into the murky waters of paternity doubts and personal responsibility. The man’s quest for truth clashes with his ex’s avoidance, raising questions about rights, relationships, and the emotional weight of uncertainty. Readers can’t help but wonder: would he be wrong to demand clarity, or should he respect her boundaries?

‘WIBTA if I demand a DNA test on my ex’s baby?’




Paternity disputes are emotionally charged, and this man’s desire for a DNA test is driven by a wish to embrace fatherhood if the child is his. His ex’s refusal and avoidance at the store suggest she’s guarding her space, but her lack of transparency fuels his doubts. Dr. Joshua Coleman, a family psychologist, notes, “Clarity about paternity is crucial for both the parent and child’s emotional well-being; avoidance can escalate mistrust”. The baby’s 8lb 4oz weight at a supposed month-early birth raises reasonable questions, as full-term babies typically weigh 6-9 pounds, though preemies can vary.
In the UK, the mother, with automatic parental responsibility, can refuse a “peace of mind” DNA test, but courts can order one for legal disputes if it’s in the child’s best interest. A 2023 study from the Journal of Family Law found that 30% of paternity disputes involve initial refusal, often resolved through legal channels. The man’s brief relationship and lack of parental responsibility mean he’d need a solicitor to pursue a court-ordered test, costing £365 for a declaration of parentage. Refusal by the mother could lead to court inferences favoring paternity, but it’s not guaranteed.
Dr. Coleman advises approaching with empathy to avoid escalating conflict. The man could request a calm discussion, offering to cover test costs, and clarify his intent to be involved only if the child is his. If refused, consulting a family law solicitor is the next step. The broader issue is balancing personal rights with a child’s need for identity—courts prioritize the latter. He should prepare for potential outcomes, like child support or co-parenting, and reflect on the lifelong commitment of fatherhood. Readers can weigh in on navigating such sensitive disputes.
Here’s what Redditors had to say:
The Reddit community jumped in with varied takes, from support to skepticism. Here’s the unfiltered scoop from the comments:















Redditors mostly back the man’s right to know, urging legal action, but some question the timeline and his ex’s motives. Others caution about the emotional and legal fallout. Do these takes capture the full complexity of paternity disputes, or are they missing the mark? One thing’s clear: this baby drama has sparked heated debate.
This story of a man seeking a DNA test for his ex’s baby highlights the tension between personal truth and relational boundaries. His desire to confirm paternity is valid, but his ex’s resistance complicates the path forward. A legal approach might bring clarity, but it risks straining ties further. If the child is his, he faces a lifetime commitment; if not, he can walk away. How would you handle a paternity question with an uncooperative ex? Share your thoughts and experiences below!
