<P> Retta tweeted on February 27, 2014 that filming for the season had finished . </P> <P> denotes an extended episode . denotes an hour - long episode . </P> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> U.S. viewers (millions) </Th> </Tr> <Tr> <Th> 91 92 </Th> <Td> </Td> <Td> "London" </Td> <Td> Dean Holland </Td> <Td> Michael Schur </Td> <Td> September 26, 2013 (2013 - 09 - 26) </Td> <Td> 3.27 </Td> </Tr> <Tr> <Td_colspan="7"> Diane tells Ron that she's pregnant, Ron proposes, and they get married in the municipal building . Leslie wins an international award that takes her, Ben, Andy, April and Ron to London, while Tom learns who his business competitor is . Ann and Chris progress in their relationship . </Td> </Tr> <Tr> <Th> 93 </Th> <Td> </Td> <Td> "The Pawnee - Eagleton Tip Off Classic" </Td> <Td> Nicole Holofcener </Td> <Td> Alan Yang </Td> <Td> October 3, 2013 (2013 - 10 - 03) </Td> <Td> 3.14 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie, Ben and Chris go to Eagleton on government business, while Ann takes April to her veterinary school orientation in Bloomington . Ron attempts to destroy every piece of evidence of his existence after receiving a junk mail flier, and Ann suggests that she and Chris move away from Pawnee after their baby is born . </Td> </Tr> <Tr> <Th> 94 </Th> <Td> </Td> <Td> "Doppelgängers" </Td> <Td> Jay Karas </Td> <Td> Donick Cary </Td> <Td> October 10, 2013 (2013 - 10 - 10) </Td> <Td> 3.23 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie pairs the Pawnee Parks Department with their Eagleton counterparts, however, none of them seem to get along . Jerry (now known as Larry) comes out of retirement to become the Parks' department filer . Ann tells Leslie that she and Chris are planning to move away from Pawnee to Michigan, which Leslie does not take well . </Td> </Tr> <Tr> <Th> 95 </Th> <Td> 5 </Td> <Td> "Gin It Up!" </Td> <Td> Jorma Taccone </Td> <Td> Matt Murray </Td> <Td> October 17, 2013 (2013 - 10 - 17) </Td> <Td> 3.27 </Td> </Tr> <Tr> <Td_colspan="7"> When Donna uses the department's Twitter account instead of her own, Leslie helps calm the over reaction to the sex - themed tweet . Elsewhere, Tom tries to impress someone who stops by the Parks Department by making her simple request take extra long, and Ron meets with a lawyer to craft his last will . </Td> </Tr> <Tr> <Th> 96 </Th> <Td> 6 </Td> <Td> "Filibuster" </Td> <Td> Morgan Sackett </Td> <Td> Harris Wittels </Td> <Td> November 14, 2013 (2013 - 11 - 14) </Td> <Td> 3.03 </Td> </Tr> <Tr> <Td_colspan="7"> Andy returns briefly from London, while Ron takes Donna hunting after failing at a computer version . Leslie plans an 1990s themed birthday party for Ben, only to miss it in order to attend a filibuster to fight for the rights of former Eagletonians to vote . </Td> </Tr> <Tr> <Th> 97 </Th> <Td> 7 </Td> <Td> "Recall Vote" </Td> <Td> Wendey Stanzler </Td> <Td> Aisha Muharrar </Td> <Td> November 14, 2013 (2013 - 11 - 14) </Td> <Td> 3.03 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie prepares Halloween festivities at town hall on the day of her recall vote, while Ron convinces Tom to sell his business in order to gain money through the deal . </Td> </Tr> <Tr> <Th> 98 </Th> <Td> 8 </Td> <Td> "Fluoride" </Td> <Td> Michael Trim </Td> <Td> Matt Hubbard </Td> <Td> November 21, 2013 (2013 - 11 - 21) </Td> <Td> 2.81 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie accepts that she has been recalled, and attempts to introduce Eagleton's water fluoridation to Pawnee, using a new attitude as a lame duck, but Jamm ruins it with fear - mongering . Tom counters with T - Dazzle, a rebrand, but Jamm decides to introduce Drink - ems, an unhealthy drink to replace water . Leslie berates Sweetums for the Drink - ems idea, which costs Ben his job . Needing Ben to have a job, Leslie decides to apologize, but through encouragement from Ben, she gets Tom to once again rebrand fluoride as H2 - Flow, which successfully works . Meanwhile, Chris tries to learn parenting techniques from a reluctant Ron, who is really just showing him how to build a crib . Elsewhere, Donna gets upset with April for choosing spirit dogs for the department, and choosing hers under basic explanations . </Td> </Tr> <Tr> <Th> 99 </Th> <Td> 9 </Td> <Td> "The Cones of Dunshire" </Td> <Td> Julie Anne Robinson </Td> <Td> Dave King </Td> <Td> November 21, 2013 (2013 - 11 - 21) </Td> <Td> 2.81 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie faces off with Councilman Jamm on a park proposal . Laid - off Ben gets a new hobby, before accepting a job offer from an accounting firm that has been courting him for two years . Tom, April and Donna help Ron sell his cabin . Chris gets Leslie to finally come to terms with his and Ann's move to Michigan . </Td> </Tr> <Tr> <Th> 100 </Th> <Td> 10 </Td> <Td> "Second Chunce" </Td> <Td> Dean Holland </Td> <Td> Amy Poehler & Michael Schur </Td> <Td> January 9, 2014 (2014 - 01 - 09) </Td> <Td> 3.43 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie comes to terms on her last days in office, when Councilmen Dexhart gets into another scandal, she tries to convince the department to run again . Meanwhile, Ann and Chris find out that they are having a boy . Andy comes home from London . </Td> </Tr> <Tr> <Th> 101 </Th> <Td> 11 </Td> <Td> "New Beginnings" </Td> <Td> Alan Yang </Td> <Td> Sam Means </Td> <Td> January 16, 2014 (2014 - 01 - 16) </Td> <Td> 3.05 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie returns to her old job and Ben becomes City Manager after Chris stepped down . April and Andy pull pranks on Ben . </Td> </Tr> <Tr> <Th> 102 </Th> <Td> 12 </Td> <Td> "Farmers Market" </Td> <Td> Adam Scott </Td> <Td> Joe Mande </Td> <Td> January 23, 2014 (2014 - 01 - 23) </Td> <Td> 2.98 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie fights with Ben over the ways the new Farmers Market is being handled . The department gets annoyed with Ann's pregnancy aspects . April supports Andy on playing music for children . </Td> </Tr> <Tr> <Th> 103 </Th> <Td> 13 </Td> <Td> "Ann and Chris" </Td> <Td> Dean Holland </Td> <Td> Aisha Muharrar & Michael Schur </Td> <Td> January 30, 2014 (2014 - 01 - 30) </Td> <Td> 3.03 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie throws a goodbye party for Ann and Chris, and tries to fulfill a promise by finally beginning to break ground on Pawnee Commons (the project that got her and Ann together). The guys search for a going - away gift for Chris . Ann and Chris say their goodbyes and leave Pawnee . </Td> </Tr> <Tr> <Th> 104 </Th> <Td> 14 </Td> <Td> "Anniversaries" </Td> <Td> Morgan Sackett </Td> <Td> Megan Amram </Td> <Td> February 27, 2014 (2014 - 02 - 27) </Td> <Td> 2.52 </Td> </Tr> <Tr> <Td_colspan="7"> Ben tries to surprise Leslie with an anniversary gifts, but ends up spending more time with Larry . Donna doesn't show up for work, so April tries to discipline her using the internet which backfires . Leslie tries to put a spin on the Pawnee - Eagleton merger . Andy and Tom come up with an idea to hold a concert to celebrate the merger . Meanwhile, Ron writes letters to all the things he hates . </Td> </Tr> <Tr> <Th> 105 </Th> <Td> 15 </Td> <Td> "The Wall" </Td> <Td> Ken Whittingham </Td> <Td> Jen Statsky </Td> <Td> March 6, 2014 (2014 - 03 - 06) </Td> <Td> 2.95 </Td> </Tr> <Tr> <Td_colspan="7"> Ben and Tom try to get sponsors for the Pawnee / Eagleton unity concert and Tom ends up getting an investment offer for one of his ideas; Leslie tries to tear down the wall dividing the two towns, only to release bees, causing Jamm to propose a secede bill; Leslie also gets an offer to run a new National Parks office out of Chicago . Meanwhile, Ron begins to bring his newborn son, John, to the office, as he rebuilds an abandoned floor in Town Hall . </Td> </Tr> <Tr> <Th> 106 </Th> <Td> 16 </Td> <Td> "New Slogan" </Td> <Td> Dean Holland </Td> <Td> Alan Yang & Sam Means </Td> <Td> March 13, 2014 (2014 - 03 - 13) </Td> <Td> 2.72 </Td> </Tr> <Tr> <Td_colspan="7"> Ben revamps the Pawnee website, on which Leslie solicits suggestions for a new town slogan, but The Douche convinces his radio listeners to write in obscene slogans . April tries to keep Tom from leaving by saying bad things about potential restaurant locations . She realizes Donna was doing the same thing by showing him awful locations, so they both try to make things right . Andy discovers Ron is Duke Silver and tries to convince him to play the unity concert . </Td> </Tr> <Tr> <Th> 107 </Th> <Td> 17 </Td> <Td> "Galentine's Day" </Td> <Td> Beth McCarthy - Miller </Td> <Td> Emma Fletcher & Rachna Fruchbom </Td> <Td> March 20, 2014 (2014 - 03 - 20) </Td> <Td> 3.05 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie throws a Galentine's Day brunch in an effort to find a new best friend . Ben, Tom and Larry search for tents for the Unity Concert . With new parental instincts Ron looks after Andy . Meanwhile, Leslie visits Ann after she gives birth to her baby, Oliver . </Td> </Tr> <Tr> <Th> 108 </Th> <Td> 18 </Td> <Td> "Prom" </Td> <Td> Ken Whittingham </Td> <Td> Matt Murray & Harris Wittels </Td> <Td> April 3, 2014 (2014 - 04 - 03) </Td> <Td> 2.67 </Td> </Tr> <Tr> <Td_colspan="7"> After it is cut from the budget, Leslie brings back the senior prom, and asks Ben and Tom to be DJs . Andy tries everything to get April, who hates prom, to go with him . </Td> </Tr> <Tr> <Th> 109 </Th> <Td> 19 </Td> <Td> "Flu Season 2" </Td> <Td> Nick Offerman </Td> <Td> Megan Amram & Dave King </Td> <Td> April 10, 2014 (2014 - 04 - 10) </Td> <Td> 2.56 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie and Andy try to find music for the unity concert while battling the flu; Donna, Tom and April go wine tasting for Tom's new restaurant . Ron and Ben have a bonding session . Later, Ben realizes he wants to start a family, and Leslie announces that she is pregnant . </Td> </Tr> <Tr> <Th> 110 </Th> <Td> 20 </Td> <Td> "One in 8,000" </Td> <Td> Dean Holland </Td> <Td> Donick Cary & Joe Mande </Td> <Td> April 17, 2014 (2014 - 04 - 17) </Td> <Td> 2.39 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie and Ben try to keep Leslie's pregnancy a secret, which proves a problem when they realize she is having triplets . Meanwhile, Donna seeks Ron's help dealing with her ex-boyfriend at a school, and April organizes Andy's schedule while trying to learn his secret . Leslie and Ben eventually tell the office, with everyone offering some form of help to them once the babies arrive . </Td> </Tr> <Tr> <Th> 111 112 </Th> <Td> 21 22 </Td> <Td> "Moving Up" </Td> <Td> Michael Schur </Td> <Td> Aisha Muharrar & Alan Yang </Td> <Td> April 24, 2014 (2014 - 04 - 24) </Td> <Td> 2.71 </Td> </Tr> <Tr> <Td_colspan="7"> Leslie, Ben and Andy visit San Francisco for a National Parks Conference, where Ben (with the help of First Lady Michelle Obama) convinces Leslie to take the job in Chicago . Tom opens his restaurant early, which backfires and the investor pulls out . The Parks Department holds the Pawnee / Eagleton Unity Concert, which is a success . Tom reopens his restaurant the night of the concert, having better luck this time and gaining another investor . Later, Leslie convinces her National Parks boss to bring her job to Pawnee, using the City Hall building's third floor that Ron has finished renovating . Three years in the future, Leslie is shown being stressed but successful at her new job, while she and Ben raise their triplets . </Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> U.S. viewers (millions) </Th> </Tr>

What episode of parks and rec does leslie find out she's pregnant