A Florida couple’s experience has drawn attention to a question no family expects to face after fertility treatment: was the intended parent’s sperm used to create their child’s embryo? 
According to a New York Post report, Joshua and Natalie Strong have filed a lawsuit alleging that a fertility clinic used another man’s sperm during their IVF treatment. Their daughter was born in June 2025. The couple says a newborn blood type result first prompted questions, and subsequent DNA testing indicated that Joshua is not her biological father.
These are the couple’s allegations. The cause of the reported mismatch, what happened to Joshua’s stored sperm, and the clinic’s responsibility have not been established by the report.
What can DNA testing establish?
Blood types can sometimes reveal a result that appears inconsistent with stated parentage, but they cannot identify a child’s biological father. A properly conducted DNA paternity test provides a much clearer answer to the question of biological parentage.
Even then, a paternity result answers only part of this family’s question. If the reported result is confirmed, it establishes that Joshua is not the child’s biological father. It does not, on its own, show how the mismatch occurred, identify the biological father, or establish what happened to Joshua’s sperm. Those questions require a separate investigation of records, samples and procedures.
Why collection procedures matter
When a DNA result may form part of a formal complaint or legal dispute, the way samples are collected matters. Identity checks, documented collection and a clear chain of custody help establish whose samples were tested and how they were handled.
Anyone facing a possible fertility treatment mix-up should seek appropriate medical and legal advice before deciding what testing to pursue. The process may involve more than one person, and the child’s privacy and wellbeing should remain central throughout.
The human impact goes beyond a test result
The Strongs’ account describes both love for their daughter and distress over unanswered questions about her conception. Those feelings can exist together. A DNA result may provide clarity about a biological relationship, but it cannot resolve the emotional impact or explain every step that led to it.
At DNATest, we believe families deserve accurate results, careful handling of samples and clear explanations of what a test can—and cannot—prove. Where a result has potential legal consequences, choosing the appropriate test and collection process from the outset is essential.
If you need guidance on paternity testing or a legally documented collection, contact DNATest to discuss the right testing process for your circumstances.
