The new mom gave birth to son Gene Attell Fischer on May 5.
A bootleg recording of a performance by the disgraced comedian was shared online on Sunday.
The disgraced comedian's announced shows at the Comedy Cellar drew protesters.
Audience members say the disgraced comedian didn't address his sexual misconduct yet again and his jokes came close to the line.
The comic attempted a comeback nine months after allegations of his sexual misconduct emerged and didn't address the elephant in the room. Now what?
Before his set at the Comedy Cellar, the disgraced comic performed at Governors' Comedy Club in Levittown, New York.
Noam Dworman, owner of the New York comedy club where Louis C.K. performed, also said he had no idea the comic was showing up.
In a Vulture interview, two female attendees said the audience included "a lot of aggressive men" and "very quiet women."
The disgraced comic received an ovation when he took the stage in New York.
It's been 16 months since he's appeared onstage like this.