John MulaneysaysOlivia Munnand the child they’re expecting together had a big part in his recovery journey.
John Mulaney, Olivia Munn.Roy Rochlin/Getty; Jon Kopaloff/Getty

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Mulaney, who said he met Munn at Meyers' 2013 wedding to Alexi Ashe, first revealed that he and his girlfriend are going to be parents earlier in the show.
“I packed a lot into this … is it September now? I went to rehab in September, I got out in October, I moved out of my home from my ex-wife [Anna Marie Tendler] … Then in the spring I went to Los Angeles and met and started to date a wonderful woman named Olivia,” he told Meyers.
Olivia Munn.Taylor Hill/Getty Images

“I’m gonna be a dad … we’re both really, really happy,” Mulaney added.
A sourcetold PEOPLEWednesday the couple is “extremely excited” about the pregnancy.
“They couldn’t be happier,” the source said.
Dimitrios Kambouris/Getty Images for SiriusXM

The comic firstbegan dating Munnthis spring. Mulaney was previously married to ex-wife Anna Marie Tendler for six years beforethe two splitwas confirmed in May; he laterfiled for divorcein July.
Mulaneychecked himself in rehabfor cocaine and alcohol dependency in December after a decades-long battle with addiction. On Tuesday’s show, he joked with Meyers that Munn “got to date me out of recovery, which is what they call a reverse-catch,” before adding, “It is a very, very lucky thing to have met this woman.”
Calling Munn “incredible,” Mulaney told Meyers, “She’s kind of held my hand through that hell” of recovery."
source: people.com