Miss Conception

""She said he talked to her on the phone and that's how he got her pregnant.""

- Overheard in New York

A character has received information that is rather inaccurate regarding where babies come from. This occurs in two forms.

Type I
A character, typically young, a bit of a ditz if older, worries they are or might be pregnant or that they have or might have gotten someone else pregnant. The only problem is that they haven't actually engaged in sex. Perhaps they failed their biology class (or never took one, or at least haven't gotten to that unit yet) and did not know that what they did could not result in anything more than a salty after-taste. Maybe they were raised very puritanically and think you can get babies from kissing, or maybe they just believe that anything with what sounds like "sex" (like "saxophone") in the title is equally likely to get you pregnant. For comic effect it could be a little girl whose parents chose their metaphors poorly during The Talk and thinks you can get pregnant from bee stings or flower pollen.

Type II
A character actually is pregnant or got someone pregnant but is surprised or shocked because they believe they couldn't have because of some Old Wives' Tale (well, more like a Young Maiden's tale; the Old Wives tend to be more knowledgeable in these matters) such as "You're OK if you do it standing up" or "You won't get pregnant your first time" or "Do some jumping jacks and take some aspirin." Sometimes played for comedy, sometimes played for drama, sometimes played for angst, sometimes the Old Wives themselves might show up in the script casting looks of disapproval about her lack of knowledge about one of the most basic points of womanhood. This Old Wife/Miss Conception dynamic could be part of a larger Closer to Earth/Virginity Makes You Stupid comparison. Aside from this angle, guys in this mess don't get much in the way of a Double Standard, but more focus may be made on the fact that they "got a girl in trouble."

Not to be confused with But I Can't Be Pregnant!, where there is normally a really good reason they shouldn't get pregnant (vasectomy, hostile uterus, slow sperm, being male), while But We Used a Condom can be related in two ways: either the users didn't know the basics of how to use a condom, or didn't know about the lack of 100% effectiveness of condoms (although in truth this is normally due to the former). The trope can also be used to justify the Law of Inverse Fertility.

Anime & Manga
"Aria: We did kiss but it's okay, I didn't get pregnant! (later) Aria: ... daddy said I would get pregnant if I kissed."
 * Yakitate!! Japan has a rare example of the first use involving a male: Kai Suwabara, a genius when it comes to swordsmanship and bread-making, is apparently a complete dunce when it comes to biology, as he was easily led to believe that he had impregnated his girlfriend just by hugging her. He then yells at her to stop hugging him so that she will not get MORE pregnant. He really is absolutely clueless.
 * In Hidan no Aria, Aria's father apparently told her that she would get pregnant if she kissed, which leads to this in episode 6:

Films -- Live-Action
"Teeny: Have you ever been French kissed? Chrissy: Are you kidding? I don't want to get pregnant. Roberta: You can't get pregnant from kissing. Chrissy: I know that, beetle brain. But, it's common knowledge, if you tongue kiss a boy, he automatically thinks you'll do the deed with him. It's the male curse."
 * Apocalypto. Background gag, just before everything goes to hell: Jaguar Paw's brother is complaining that he still hasn't managed to impregnate his wife, even though they have sex constantly. Fed up with the complaints, his father gives him a "fertility herb" to rub on his privates just before the act. Thirty seconds later, the brother runs out of his tent in pain and dunks his burning genitals in water. His wife follows... and starts drinking water to quench her burning mouth.
 * That was likely just foreplay. Thank goodness they didn't get to the main event or she would've felt the same pain as her husband... only internally.
 * Mermaids, a 1990 film starring Cher. The older daughter thought she could get pregnant just by kissing a guy.
 * Now and Then. The girls have a conversation where at first this seems to the case. Especially believable due to Chrissy's mother, who is either a sexaphobe or just overly concerned about her daughter growing up and learning about sex.

Folklore

 * An urban legend that varies from region to region describes a couple who went to their doctor because they were having trouble conceiving. Reasons for the misunderstanding range from religious (they have not yet had sex and didn't make the connection) to having the wrong kind of sex (anal).

Literature

 * The Bonesetter's Daughter. Eleven-year-old Ruth is unclear on many things relating to sex, including the specific bodily fluid necessary for conception. So when she sits down on a toilet seat immediately after her male neighbor used it and didn't aim well, she fears she's pregnant.
 * Carnal Crimes of Cremorne, a ribald Edwardian novel. Caroline's maid is terrified she might be pregnant after performing oral sex on a man. After a brief Author Filibuster on the need to provide decent sex education to the lower classes, Caroline informs the girl as to the truth of the matter. The girl is so grateful that she engages in lesbian sex with her mistress.
 * Catch-22. The doctor shows up with a black eye and explains it came from explaining something to a patient who demanded to know why his wife wasn't pregnant yet, claiming they'd been having sex every night. After some conversation he got the man to show him with a pair of dolls just what, exactly, they were doing every night. And had to explain as tactfully as possible why that might not be getting her pregnant.
 * The Duke and I. Daphne wants kids, but her new husband doesn't. He's pulling out before ejaculation, but as far as she knows (because her mother neglected to give her The Talk) they're trying to make a baby.
 * Since pulling out isn't a reliable method of contraception (although recent studies rate it as only slightly less effective than normal, not perfect, condom use), there's a bit of crossover with the second type of this as well.
 * The Joy Luck Club has one of the mothers, Lindo, revealing through backstory that her first husband in China was unable to get her pregnant. While his mother, her mother-in-law, eager for a lot of grandchildren, accuses her of "spilling his seed," it's revealed that it's because they haven't actually had sex. This is because the husband is very young, bare minimum to be having children, and isn't emotionally ready for it yet.
 * The Thorn Birds: Meggie thinks she's dying because because she's been "bleeding from her bottom" once a month for several months. Poor Father Ralph has to explain to her that she's having her period, all the while suppressing his anger at Fee, Meggie's mother, for being so neglectful of her daughter that she's failed to explain this to her. During that same conversation, he asks her if she knows where babies come from and she cheerfully declares, "You wish for them and they grow!". She's in for quite an unpleasant surprise on her wedding night. ..
 * The movie improves on this slightly by having her know about sex (having grown up on a farm, she's witnessed the animal behavior), but is still shocked at how painful her first experience is.

Live-Action TV
"Fry: Mmm. And Michael just sort of... popped up, did he? Laurie: Yes, well of course it's a few years ago now, but I think one day he was... just there. Fry: And at no stage did you and Mrs. Smear engage in any act of sexual intimacy? Laurie: Yes, it's very hard for you to believe, isn't it? It's very hard for you to believe that there are still some of us who can bring a child into this world without recourse to cannabis and government handouts!"
 * A Bit of Fry and Laurie
 * A sketch has Fry as the headmaster of a school and Laurie as Mr. Smear, an ultra-strait-laced parent outraged that his young son had been taught "gutter language" and "lies" about human reproduction in biology class—specifically, that "sexual intercourse can bring about pregnancy in the adult female," which he claims is "nothing more than a disgusting rumor put about by trendy young people in The Sixties." The baffled headmaster gently points out that Mr. Smear must have had sex with Mrs. Smear at some point to produce little Michael; Mr. Smear is mortally offended and says that Michael is his son "in the normal way," which, when pressed, he describes as getting married, buying a house and some furniture, and just waiting for a bit, making sure to eat three hot meals a day.

"Wife: We didn't get one. Said it'd take nine months or somethin'. And the things they wanted us to do! Husband: Sections of intercost, or something. Wife: Sounds 'orrible. Interviewer: Well, everybody does it, you know. Wife: They don't!"
 * Another Fry and Laurie example has a father (Fry) asking his son (Laurie) if he was aware of the facts of life before his impending marriage.
 * Friends. Monica and Chandler are going to adopt from a woman who is still pregnant with the child. They inquire about the father who she reveals is one of two choices: one golden boy and one jail hound who murdered his own father with a shovel. They (especially Chandler) worry about the father-murderer choice until Monica discovers that the act she committed with him was not something that could get you pregnant. We never find out what it actually is she did but from Chandler's reaction we guess it could be another explanation for the nickname "Shovelly Joe".
 * Monica asks if it was the thing they rarely do or the thing they never do. It was the thing they never do.
 * Glee. Finn believes his girlfriend when she claims he got her pregnant when he ejaculated in a hot tub while they were both clothed (and genitalia not touching). In a later episode, Brittany believes she is definitely pregnant...her boyfriend, Artie, worries because they have had sex. However, the reason Brittany believes she is pregnant is because she saw a stork build a nest outside her window. All is now well, for Brittany is a known fool.
 * Good Times. A girl in Penny's 6th grade class is pregnant. When Penny asks Wilona what is wrong with her friend (said friend is hugely showing), Wilona tells her that her friend has stomach mumps and that Penny should not play with her anymore because it's contagious. Florida is upset by this and implores Wilona to have The Talk with Penny so that she won't be misinformed about sex and possibly become pregnant like her friend.
 * Wait a second, doesn't that mean she was pregnant at the age of 11???
 * Some girls start their periods that young or even younger. Also, it's possible to be 12 in sixth grade.
 * Hence Wilona's understandable, if not exactly justified freak-out.
 * Happy Days. One episode features a girl who thought she was pregnant after necking with her boyfriend while wearing a bikini.
 * The Nanny. Youngest child Grace thought she was pregnant due to Fran describing a soap opera character who was pregnant: they "slept together" (Grace and her male friend both took a nap in the same room), Grace was "late" (they had missed a playdate because of the nap).
 * Victoria Wood: As Seen on TV. A gag similar to the "Fry and Laurie" one, (although not taken to the same level of surreality) appears in a Mockumentary set at a hospital interviews a couple who were asking a doctor about having a child.


 * Although earlier in the same sketch, when told test tube babies are conceived in a test tube, her reaction was "We'd never both fit in." Ping-Pong Naivete, but a fairly consistent level of stupidity.

Theater
"...so innocent and so sincere She asks if women have babies by the ear."
 * L'École des femmes (The School for Wives) by the 17th century playwright Molière. The old Arnolphe plans to marry his ward Agnès, whom he brought up to be be too innocent to make him a cuckold. As a result, the seventeen-year-old future bride is:

Visual Novels

 * Clannad. Kappei refuses to go through with a life-saving operation, so his girlfriend Ryou tries to coerce him by claiming that she's pregnant with his child... until Kappei points out that they haven't fulfilled the necessary prerequisites.

Web Comics

 * Achewood. An early story arc involves Phillipe getting "married" to a flower after Lie Bot tricks him into thinking he made it pregnant by touching it (and everyone else apparently goes along with it For the Lulz). Possibly a Shout-Out to the King of the Hill episode mentioned below.
 * Hannelore worries that she might be pregnant and suffering from morning sickness, despite being disgusted by the idea of sex. She's paranoid enough to believe that someone may have artificially inseminated her without her knowledge.

Western Animation

 * American Dad. The episode "Deacon Stan, Jesus Man" played with this. Steve gets caught holding hands with his crush, Betsy by her parents who tell her "hand holding leads to kissing which can get you pregnant.". Later in the episode, Steve gives Roger CPR and wakes up the next morning pregnant. Roger, being an alien, as well as one of Ambiguous Gender, reveals that his species reproduces through mouth to mouth contact, and he accidentally put his spawn into Steve. Later, Steve kisses his crush, Betsy, the daughter of Stan's rival, Chuck White. The next morning he wakes up no longer pregnant. It turns out he transferred the spawn to her, and she's now pregnant.
 * Drawn Together. Conniving bitch Toot convinces Princess Clara she's fallen pregnant because the next thing after True Love's Kiss is children. Clara submits to a tumble or three down the stairs of the "M.C. Escher room" before Foxxy Love explains to her how human biology works. Even worse, Clara had been kissed by another woman. Talk about Virginity Makes You Stupid.
 * King of the Hill. In season 3 episode 14, "The Wedding of Bobby Hill", Bobby and Luanne have an Escalating War of pranks that culminates in Bobby replacing Luanne's birth control pills with candy, and Luanne then tricking him into believing that this alone made her pregnant and that he must now marry her. Hank and Peggy apparently go along with this to teach Bobby a lesson... and . They can be quite sneaky sometimes.
 * The Simpsons In one episode, Bart thinks he has gotten a girl pregnant by kissing and holding her hand at the same time, a case of Ping-Pong Naivete.
 * A deleted scene from an episode where Lisa gets a crush on Nelson has her daydreaming about them being married with a baby. Nelson presents it to her and says "Our love created it somehow."

Real Life

 * Henry VIII based his divorce from his fourth wife partly on the grounds of non-consummation. She was confused by this because he did give her a kiss goodnight and she thought that was how it worked.
 * Some children will make up their own explanations for how babies are made based on the limited knowledge they have of such matters, some of which are astonishingly complete.

Comics -- Books

 * The Sandman. The story arc, "A Game of You", Hazel got pregnant after having sex standing up, though she thought she wouldn't. Somewhat Justified in that she's a Butch Lesbian, and apparently hadn't had sex with a man before.
 * The 'you can't get pregnant your first time' myth came up in Troublemakers. After Christine discovers this isn't true, she goes to a doctor friend to get checked out and this ultimately leads to her discovering that she isn't human any more.

Literature
"Fawn: He did say a girl couldn't be got with child the first time. Dag: And you believed this? You, a country girl? Fawn: I said I was stupid about it. I thought maybe people were different than heifers. I thought maybe Sunny knew more than me. He could hardly know less. It's not as if anybody talked about it. To me, I mean."
 * A Dangerous Fortune by Ken Follett's. Happens with Maisie Robinson "It was just one f*ck!"
 * Murdering Ministers by Alan Beechy. A thirteen-year-old girl whose highly religious parents never taught her about reproduction falls pregnant when she lets a close friend have sex with her, since he seemed so keen on it. Having a vague notion that "babies are a gift from God to a man and a woman", she concludes that her pregnancy is God's way of telling her she should be with her youth minister whom she adores. A number of misunderstandings ensue when she tells him this.
 * The Sharing Knife. Sunny tells Fawn this. She doesn't know if he was lying to get in her pants or if he actually believed it, but either way it's a costly mistake.


 * Cara in the Sword of Truth, mentions a teen who believed that she became pregnant because Darken Rahl gave her a flower and did some magic on it.
 * Almost everybody in Earth's Children do not know about the sex/pregnancy connection. The Clan thinks that every month a totem from a female and a totem from a nearby male will fight, and if the female totem looses, the female will get pregnant. The Others believe the Earth Mother blesses females with babies. Ayla is the only person who connects sex with babies.
 * More justified than, well, pretty much every other unique discovery or technological advancement Ayla is solely responsible for; she's the only female character we meet who's spent a prolonged period totally isolated from male company, or in fact any human or Neanderthal company at all for that matter, and eventually she starts to wonder why she hasn't become pregnant.

Live-Action TV

 * All in The Family/Archie Bunker's Place. A Very Special Episode had one of Stephanie's friends got pregnant. She thought that she couldn't get pregnant because it was her first time.
 * Carnivale. Libby tells Sophie that she can't get pregnant after her first time. She doesn't, but she certainly could have.
 * Clueless. There is an episode where the one-episode character, a tutor for the regulars, gets pregnant in such a situation. It's even brought up that while this girl was smart about school-things, she didn't have a clue about real life.
 * Degrassi Junior High
 * Spike thought she couldn't get pregnant her first time. She was wrong.
 * Degrassi the Next Generation also had this happen, this time to Manny.
 * That '70s Show
 * Jackie discovers she is pregnant, but she thought you couldn't get pregnant for 8 days after your period. Though, as Donna points out, it's eight days after the first day of the period, not the last day. Subverted in that it turns out she's not actually pregnant anyway.
 * Not that Donna's words were any better since it's possible for a woman to become pregnant after having had sex during a period.
 * A similar scenario appears in a later season when Kelso gets Brooke pregnant, that uses the "If you do it standing up myth." However, rather than you can't get pregnant, it's that the baby won't be a girl, according to Kelso.
 * The first episode of The Vicar of Dibley where Alice is pregnant with her and husband Hugo Horton's first child, she mentions that she can't be pregnant because "the hamster didn't turn blue". To her credit the titular vicar lampshades it by saying, "I don't think I'm familiar with that particular pregnancy test."

Print Media

 * Weekly World News. A story from that escaped into the wild as an Urban Legend: A woman sues the maker of spermicidal jelly after she gets pregnant. Then it turns out that she had used the product by putting it on crackers and eating it.
 * Referenced (but inverted) in an episode of House. A woman comes to him complaining of itching and smelling bad "down there." It turns out she had been using jelly...but not spermicidal jelly, which gave her a bacterial infection.
 * An article on Urban Myths on Fertility in Chile: "I use the Chinese calendar: You won't get pregnant if you only have sex when you are 'Closed'." "Open" was when she was likely to be bleeding.

Theater

 * Spring Awakening. 14-year-old Wendla's mother tells her that, in order to have a child, she must simply love her husband with her whole heart. She is later shocked to find herself pregnant as a result of having sex with her friend, Melchior. After all, Melchior is not her husband!

Web Comics
"Thor: It's not my fault! She never told me she was a fertility goddess! Loki: She has flowers in her hair and bluebirds singing around her head. Who did you think she was, the bringer of pestilence?"
 * Order of the Stick. A... divine example:


 * Something Positive. Mike is shocked when Tamara gets pregnant, since "I always pull out before I come!" Cue the rest of the cast yelling at him for his stupidity.