After describing a very up-and-down year, Mulaney declared on "Late Night With Seth Meyers," about himself and Munn, "We're having a baby together. I was nervous when I was about to say the news!"
Pause for reaction.
At time of writing, the actress herself had not yet commented publicly on her pregnancy, however Page Six reports a source said she is "delighted" by the news. The outlet also published photos that reveal the star's baby bump, although we don't know how far along she is, or whether she is having a boy or girl.
Meanwhile, as CNN notes, this will be the first child for both celebrities, while Mulaney also told Meyers about becoming a new dad, "Olivia and this baby have helped save me from myself in this early journey out of recovery."