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Woman issues urgent warning to public after doctor allegedly impregnated her without her knowledge during medical appointment
It may be one of the most disturbing stories of the year, as a woman and her son are looking to sue a gynecologist, claiming he used his own sperm to impregnate her without consent.
They claim that this could also involve other patients, as PEOPLE reports that the complaint was filed in Milwaukee County Circuit Court back on August 6.
It was filed by Mary Ellen Lukezich and her son, Joseph Laedtke Heider, and it dates back to 1980, when the mom was 25 and looking to conceive with her husband Thomas Laedtke.
The Wisconsin mom agreed with her longtime OB-GYN and fertility specialist, Dr. Frederick Dettmann, to go through artificial insemination using sperm from an anonymous donor, who was believed to be a medical student.
Fast forward to 1982, and Lukezich became pregnant and gave birth to Joseph in 1983 - the procedure was a success.
Joseph's dark discovery
By 2024, Joseph was in his 40s, but a DNA test on Ancestry.com revealed the twisted truth of his genetics.
Dettmann, now 91, was his biological father, the complaint details, with results also revealing that he had half-siblings and other family members whom he didn't know existed.
The mom and son's attorney, Al Foeckler, said that the gynecologist never told Lukezich that he was using his own sperm for the procedure, never getting her consent.
Now, the mom and son are looking for an unspecified amount in damages, which will be finalized at trial.
Joseph released a public statement, saying: “Words cannot fully express what it feels like to learn that your entire identity is built on a lie told by a doctor who took an oath to do no harm.”
He also highlighted the sympathy he has for his mother, stating that "she was a young woman who wanted nothing more than to become a mother."
Urgent message to past patients
Joseph and his mom came forward after realizing they might not be alone in this difficult situation, as they have encouraged others to step forward.
A statement read: “If you were a patient of Dr. Frederick Dettmann, if you used his fertility services and have discovered unexpected relatives through DNA testing, please know you are not alone, and we hope you will come forward so that together we can seek the truth and the justice that all of us deserve.”
Speaking to NBC News, Foeckler said that numerous women have come forward, citing “uncomfortable interactions” they had with the health professional.
Now, Sean Gaynor, who is an attorney for Dettman, has disputed claims made against him, telling the publication: “The events referenced are alleged to have occurred almost 50 years ago,
“Dr. Dettmann has no independent recollection of the individuals making these allegations and is unaware of any evidence supporting the claims being asserted.”

















