John Stamos got a woman pregnant in his twenties.
John Stamos
The 'Grandfathered' actor - who doesn't have any children - revealed that he and the unnamed ex decided that she should have an abortion after they discovered she was expecting his baby almost 30 years ago.
John, 52, said: "This was just bad timing. It really wasn't my choice...I think it was sort of a mutual decision."
Meanwhile, John - who was married to Rebecca Romijn from 1998 to 2005 - also revealed he is still embarrassed by his arrest for driving under the influence.
The 'Fuller House' actor was arrested in June after police officers were alerted to the fact he'd been drinking when he started driving erratically along Santa Monica Boulevard and John is horrified that he put others in danger with his actions.
He said: "I had a horrific DUI, which I am so embarrassed by. I could have hurt somebody, it was really stupid and ignorant of me. And I hated myself for that. It was a bad, bad thing. So I said to myself, I have to stop this up and down, up and down, I have to."
After his arrest for driving under the influence, John entered rehab and says he now no longer drinks alcohol or takes antidepressants.
He told DJ Howard Stern on his Sirius XM show: "I walked in those doors, I said 'tell me what to do. I'll do anything I can' - and if it doesn't work after the time, then it didn't work but I'm going to apply myself a 100 per cent to it. Which I haven't over the years.
"I was on some medications, antidepressants and that damn Ambien, I'm so happy to be off that. Completely off. I don't take anything. My memory was starting to get really f***ed up too, from that. Difficult to memorise scripts, I couldn't remember names and places and things. And that was the hardest thing to kick, by the way. Booze, and whatever, that happened, but the Ambien was tough."
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