Olivia Munn and John Mulaney encountered a little bump in their parenting Journey.

The mom of one revealed the struggle they were passing through via her Instagram story.

She posted a series of videos and pictures detailing the event.

In the short clip, Mulaney carried his son on his lap and read him a storybook.

Munn disclosed that their son Malcolm couldn't sleep due to the discomfort he was having.

The former tv host revealed that Malcolm was experiencing teething issues.

She and her partner appeared to stay up all night to cater to their son's needs.