Olivia Munn and John Mulaney have welcomed their first child together, a source confirms. According to People and TMZ, Munn gave birth to a baby boy in Nov, a day before Thanksgiving. This exciting news comes more than two months after Mulaney confirmed Munn's pregnancy during an interview with Seth Meyers. "In the spring, I went to Los Angeles, and met and started to date a wonderful woman named Olivia Munn," he said on Late Night in September. "I'm going to be a dad. We're both really, really happy." Mulaney and Munn, first sparked romance rumours in May, following his split from wife Anna Marie Tendler. Their budding relationship also came a few months after Mulaney completed a 60-day stay in rehab for struggles relating to addiction. "The focus for John is his recovery and Olivia fully supports that," the insider shared. "She has been very supportive of his addiction and recovery. She will continue to help him in whatever ways she can and be there for him." During Mulaney's interview with Meyers, the comedian called his relationship with Munn "really beautiful."