How I Met Your Mother (2005–2014)
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Not a Father's Day 

While Barney celebrates a pregnancy false alarm, Marshall and Lily try to figure out if it's time to have a baby.


Pamela Fryman


Carter Bays (created by), Craig Thomas (created by) | 3 more credits »


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Episode cast overview:
Josh Radnor ... Ted Mosby
Jason Segel ... Marshall Eriksen
Cobie Smulders ... Robin Scherbatsky
Neil Patrick Harris ... Barney Stinson
Alyson Hannigan ... Lily Aldrin
Dan Lauria ... Nolan
Lindsey Stoddart ... Charlotte
Michael Antosy ... Recruit
Michael Hagiwara ... Mr. Li
Michael McCafferty ... Cabbie
Elena K. Smith Elena K. Smith ... Ted's Cousin
Danièle Watts ... Lori (as Daniele Watts)


Barney is told by one of his sexual conquests that she may be pregnant with his baby. When Barney learns that she isn't pregnant, he celebrates by creating what he hopes will be a new national holiday: Not a Father's Day. Ted and Robin try to open Barney's eyes to who are not fathers. Meanwhile, Marshall and Lily are contemplating having a baby. When Marshall has to skip a planned baby making session due to a work meeting, Lily begins to wonder if she and Marshall really are ready to be parents. She calls in Robin and Ted for their advice, they who are on opposing sides of the issue. As Robin and Ted debate the general issues of parenthood, Lily, with the assistance of a bottle of wine, goes to Marshall's office invading his meeting to tell him her decision in only the way a drunken wannabe mom can. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


TV-PG | See all certifications »






Release Date:

10 November 2008 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.78 : 1
See full technical specs »

Did You Know?


Not a father's day is now considered to be celebrated on the 10th November, the original air date of this episode. See more »


Robin states "I have a permit for that" for the handgun in her purse. Private citizens in New York City cannot get "carry permits" for handguns. See more »


Marshall Eriksen: [On the phone] Hey, babe. It's breakfast time in China.
Lily Aldrin: Yeah it is.
Marshall Eriksen: Not a euphemism. Look, I... wait... what would that even mean?
Lily Aldrin: I don't know. Hot buns, spicy pork, there's something there. You're not coming home tonight are you?
Marshall Eriksen: [shakes his head]
Lily Aldrin: Are you shaking your head no?
Marshall Eriksen: [Nods]
Lily Aldrin: I thought so.
See more »


References Star Wars: Episode IV - A New Hope (1977) See more »


Hey Beautiful
Written by The Solids
Performed by The Solids
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User Reviews

Classic Barney Stinson
14 April 2016 | by simbrabSee all my reviews

Neil Patrick Harris as Barney Stinson is the star of an extremely fun episode about the pros and cons of having kids.

Marshall and Lily think about having a baby and have to decide if they are ready for it. Whereas Marshall is excited about the idea but swamped with work at GNB, Lily is unassured and reverts to Ted, Robin and a lot of wine to help with the decision. Meanwhile, Barney creates a new holiday for single guys without kids and inducts us into the theory of the 'cheerleader effect'. While Barney's theories are usually insane, I find this particular one to actually be a real thing.

Some of the jokes may cast a slur at childless single life, but Neil Patrick Harris' performance makes more than up for it. Besides all the fun, it is good to see some Ted and Robin interaction again.

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