Anni and Ashot Manukyan, who claim they found out about their biological son after experiencing the heartbreak of their own failed IVF attempt that unknowingly involved two embryos from a stranger, spoke out for the first time Wednesday to say CHA Fertility Center has put them "through a living hell".
The birth mother in NY believed she was carrying twins made from her and her husband's genetic material, the suit says.
The babies have since been reunited with their biological parents leaving the NY couple, who spent $US100,000 ($A143,600) on fertility treatment, with "permanent emotional injuries from which they will not recover".
However, according to their court filing, neither embryo was transferred to Anni Manukyan's uterus.
They are now suing the fertility centre along with Anni and Ashot Manukyan, one of the other couples embroiled in the debacle, news.com.au reports.
The couple's lawsuit names the center, CHA Health Systems, Lee and owner and medical director Joshua Berger as well as laboratory director Simon Hong.
A second lawsuit involving one of the three couples whose in vitro fertilization process resulted in embryos implanted in the wrong woman is suing the California fertility clinic after they discovered their biological son was born to another set of parents who live in NY. However, this procedure did not result in a pregnancy.
Anni and Ashot Manukyan of Glendale claim that they were one of three couples to have their embryos allegedly swapped at CHA Fertility Center, according to their lawyer Adam Wolf.
Alec was six weeks old by the time they met him for the first time, an encounter that happened in the lobby of a hotel.
"Who wants to meet their child in the lobby of a hotel?" she said.
"What Anni and Ashot discovered, much to their horror, was that their son had been stolen from them when he was still an embryo and implanted into a stranger that later became his birth mother", claims the suit filed Wednesday in Los Angeles County Superior Court. "It was heartbreaking. It was bad", she sobbed.
An attorney for the couple, Adam Wolf, said Wednesday the three-family mixup was one of the worst fertility centre tragedies in United States history.
Instead, they directed their ire at CHA Fertility, both for misusing their embryos and for implanting her with another embryo.
The Manukyans said a few days later they were asked by the fertility clinic to take a DNA test.
Identified in court papers only as Y.Z. and A.P., the couple said they were shocked in March 2019 when they gave birth and realized that the children weren't of Asian descent, as they are.
To make matters worse, Anni Manukyan later learned she had been implanted with an embryo belonging to yet another couple who were clients of the clinic - but CHA has no idea who. "It is clearly one of the worst fertility-center tragedies in USA history".
An alleged fertility-clinic foul-up that resulted in a woman giving birth to the biological sons of two other couples-and then having to give them up-has spawned a second lawsuit.
The Korean American couple from Flushing, also a client of CHA, were told they had conceived twins, but the tragic mix-up became clear when the woman gave birth to two children of another ethnicity.
The couple reportedly spent over $100,000 on fees and travel expenses associated with the clinic, and have suffered "permanent emotional injuries from which they will not recover". On this second attempt, though, they said the fertility clinic bungled their IVF process and have not been forthcoming since then.
The third family - who remains anonymous - has also been reunited with their son.