Exclusive: Larry Birkhead, Anna Nicole's Ex, Speaks Out

Howard K. Stern, two docs on trial for alleged role in prescribing drugs.

Aug. 30, 2010— -- An ex-boyfriend of Anna Nicole Smith said he feared for his unborn daughter's safety when Smith appeared impaired while pregnant before her own death by overdose three years ago.

"Until I got my daughter back, I worried every single day," Larry Birkhead told "Good Morning America" in an exclusive interview, referring to the time after the couple's daughter, Danielynn, was born.

"But once I got her back and took her to the doctors and took her to all these different specialists to make sure everything is OK, they all assured me, 'Your daughter's healthy, she's happy.'... I got lucky."

Birkhead is a witness in the ongoing trial of another of Smith's former boyfriends and lawyer, Howard K. Stern, as well as two doctors who are accused of illegally supplying Smith with drugs.

The reality star and former Playboy model was found dead of a prescription drug overdose in February 2007.

Birkhead said he believes the charges against Stern, in particular, are "unfair."

"Howard's being held, in my opinion, to the same standards as the doctors, almost as if he prescribed the medications," Birkhead said.

It's hardly the first time Birkhead has been in court because of a Smith-related controversy. He came out the winner in 2007 in a whirlwind paternity case that also involved Stern.

While the trial was nothing short of a tabloid frenzy, Birkhead told "GMA," he was so confident he was the girl's father that he promised Smith he would care for Danielynn, who turns 4-years-old in two weeks.

"We all got to put something in the casket, and I put a three-page letter -- this is before the DNA test -- saying I was going to take care of Dannielynn," he said. "That's how certain I was that she was mine, and the charade was over. I just told her that she was going to be fine."

Birkhead is teaching his daughter her ABC's but, he said, worries about other things she might learn, such as about the uglier side to her Playboy-model mother's life.

"If her Mom comes on television, she will say that's her mom, that's Anna Nicole," Birkhead said. "I think that I do worry that kids in school might say something ... and some of those things could be cruel at times.

"I just hope that I get the opportunity to explain some of the things before she gets to the point to where people come and tell her," he added. "There's so many [things] that I have to worry about telling her. She's running but I'm still taking baby steps."

AP: Nannies Could Testify in Drug Trial

In addition to the drug trial, another controversy, this one 15 years old, continues to cast a shadow over Smith's controversial legacy. For the past decade and a half, an argument has been brewing over a large inheritance Danielynn could see from a Texas billionaire who died one year after Anna Nicole married him. The case could eventually reach the U.S. Supreme Court.

"She'll lead a charmed life because she has her father and people around her that love her, and I think that's more important than money," Birkhead said. "I think that's a charmed life is what you make of it."

If convicted in the drug trial, the doctors could lose their licenses and all three men could face more than five years in prison.

The prosecution is nearing the end of its case but could still have two of Smith's nanny's testify, the Associated Press reported today.

"If I were the defense, I would prepare for their testimony. We are doing what we can to bring them here," deputy district attorney Renee Rose said last week, according to the AP.

The two women are Haitian and worked for Smith in the Bahamas.

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