One Tree Hill

Season 1 Episode 19

How Can You Be Sure?

Aired Wednesday 8:00 PM Apr 20, 2004 on The CW
out of 10
User Rating
347 votes

By Users

Episode Summary

Lucas finds out that Brooke is with child and must make a decision regarding the pregnancy. Brooke gives Lucas the cold shoulder regarding the situation. Meanwhile, Haley considers giving her virginity to Nathan.

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  • History repeating?

    It may have been obvious what How Can You Be Sure? was trying to do - put Lucas in the same situation his parents were in all those years ago - but it was actually pretty effective.

    It was really intense to see Lucas go through the motions of what to do about the child. I actually felt sorry for him that Brooke wasn't speaking to him. Very powerful moment when Lucas tells Karen and she slaps him only to break down and apologise afterwards. It felt like a real moment between a mother and son.

    That's why it's other more ridiculous when Brooke reveals she's been lying half the time about the pregnancy. Way to drop to their level Brooke. I mean I know they hurt her but this was a low blow even for her. I would've been way more pissed if I was Lucas. It was interesting to see Dan's side of things too. Seeing him admire younger pictures of Lucas below was a strange twist.

    Karen turned down Keith's proposal. Predictable but the writers really want to push them apart. Now he's moving away? Rash move, Keith. Haley's dilemma about sex was well done throughout the episode, as was Nathan not wanting to push her. That's why the ending why they both said I love you was so satisfying. Hopefully Haley won't just jump into bed with him now though...I don't remember what she does. But it was very sweet.

    Nikki is a little 'psycho stalker bitch' right now. Oh my god are we seeing One Tree Hill's first psycho storyline? They love them. I like how Peyton is sticking by Jake though - they should get together.

    All good and interesting setup for the last three episodes of the season!

  • Naley says I Love You

    Karen turns down Keith's proposal. Brooke sees a doctor about her possible pregnancy. Her and Lucas get into a fight about it so when she finds out she isn't pregnant she lies and tell Lucas that she is to punish him.

    Nicki is hanging around still and encouraging Peyton to stay away.

    Nathan sees Haley's tattoo and has a bit of a freak out over it because he doesn't understand how she can get a tattoo of his jersey number, but won't sleep with him. This becomes a big issue with them until the end of the season. Near the end of the episode they share a touching moment when they tell each other how they feel. Nathan and Haley are in love!moreless
  • Season 1, Episode 19.

    Lucas finds out that Brooke is with child and must make a decision regarding the pregnancy. Brooke gives Lucas the cold shoulder regarding the situation. Meanwhile, Haley considers giving her virginity to Nathan. Wow, the pregnancy drama was EXCELLENT. Karen turns down Keith's proposal! :( The pregnancy test was positive! Nathan sees Haley's tattoo! I hate Lucas! His little accusation toward Nathan was unbelievable, but understandable. "Yeah, that's my life. Notice who's not in it?" Haha, Jake will never let that go. "Since you got my jersey number tattooed on your ass." LMAO! "Maybe you can pull a Dan Scott and knock two girls up at once." LMAO. Good episode!moreless
  • a fantastic episode.

    I really liked this one. It was really great. Brooke tells Lucas that she thinks that she is pregnant, and they are both scared. She takes a pregnancy test and it's positive but then she calls the doctor, and they say she's not pregnant. She lies to Lucas and tells him that the baby is his. You find out at the end that Brooke lied to Lucas, and that the doctor said that she's not pregnant. Keith proposes to Karen, but she says no. Keith decides that he's going to leave town because what Karen said made him decide that Tree Hill didn't really feel like home now.

    Nikki, Jake's ex thinks that there's something going on with Jake and Peyton. Peyton continues to babysit Jenny.

    Haley thinks about having sex with Nathan a little bit. She decides not to. Nathan sees Haley's tattoo of his jersey number, 23, on her lowerback. He gets freaked out. Near the end, he tells her that he doesn't want to pressure her, and that he doesn't want to drive her away. He tells her that he loves her, and even though it scares him a little bit, he does. Haley is surprised, and she's like wow. They kiss, and she tells him that she loves him too.

    I thought that the Nathan & Haley parts were really cute. I personally love them together as a couple.moreless
  • this was a good ep

    in this ep of the show one tree hill lucas thinks brook is pregnant but thing is she keeps giving him the cold shoulder on the subject and does not want to talk about it. also in this ep haley is tring to make the desion if she should sleep with nathan and him to be herfirst time. and lucas and brook go and find out she is not pregnant. at all this was a really good ep and it had alot of emotions and alot drama about the usuly teen subejects . and it was a good one and that is why i gave it 8.5moreless
Zachary Hermann

Zachary Hermann

Player #2

Guest Star

Kwame Heyward

Kwame Heyward

Player #1

Guest Star

J. R. Rodriguez

J. R. Rodriguez


Guest Star

Brett Claywell

Brett Claywell

Tim Smith

Recurring Role

Bryan Greenberg

Bryan Greenberg

Jake Jagielski

Recurring Role

Emmanuelle Vaugier

Emmanuelle Vaugier


Recurring Role

Trivia, Notes, Quotes and Allusions


  • TRIVIA (1)

    • When Nicki is looking at Jake's photos on the fireplace mantel he has his back turned to it. If you look right behind him before the scene ends, you can glimpse a picture of Bryan Greenberg (Jake) with OTH creator Mark Schwahn.

  • QUOTES (8)

    • Lucas: I'm just as scared as you are. But I want to help. Please. Just, trust me.
      Brooke: Yeah, cause that worked out so well for me the last time.

    • Karen: Tree Hill is such a small part of the world, and maybe it's where I belong, but there's so much more out there. Italy was the first time since Lucas was born that I've spent anytime alone. I realized I only knew myself as Lucas's mother. I've gotta find the rest of me. You mean the world to me Keith, but I'm sorry. I can't marry you.

    • Nathan: What? I just don't feel like making out, that's all.
      Haley: You realize you just said that, right? Since when?
      Nathan: Since you got my jersey number tattooed on your ass.

    • Nathan: Haley, you got a tattoo for god sakes. It just freaks me out a little bit because obviously this whole thing with us means a lot to you. I just don't want to do anything to pressure you. Or drive you away. Even though sometimes I can't help it. Just like I can't help that I fell in love with you. Cause I did. I love you, Haley. And it scares me, a little bit, but, there it is.
      Haley: Wow. There it is. [She kisses him] I love you, too.

    • Lucas: Hey, come on, you can't cut me out of this. I'm just as worried as you are.
      Brooke: Oh really? Or are you just worried that having a kid might deflate your market value?

    • Lucas: What do you mean, you think?
      Brooke: I mean, I'm late. Like, late.
      Lucas: Did you take a test? (Brooke nods no) Okay. Okay, um. Look, we have to know, okay? Maybe... maybe it's just a false alarm, you know? Come on. Drug store's still open. We'll do it together. Okay?

    • Brooke: I lied.
      Lucas: What?
      Brooke: I'm not pregnant.
      Lucas: Wha - But I saw the test.
      Brooke: I know. And when the doctor called, he said I wasn't pregnant. He said that can happen.
      Lucas: Okay, no-no-no-no-no. I-I-I was standing right there when he called.
      Brooke: And you had just called me a slut.
      Lucas: So you lied to me to punish me?! How could you do that?
      Brooke: How could you cheat on me with my best friend?
      Lucas: Brooke, I never meant to hurt you.
      Brooke: That doesn't really matter, Lucas. Cause in the end it all hurts just the same.

    • Nicki: I mean, all the babysitting in the world isn't going to make you Jenny's mother.
      Peyton: All the eyeliner in the world won't make you anything other than a psycho stalker bitch.

  • NOTES (2)

    • This episode features an unaired scene on the season 1 DVD set. It is between Dan and Whitey. Aside from that, Barry Corbin (Whitey) didn't appear.

    • Featured Music:
      "Someone Like You" by Master Source
      "Coming Undone" by Highwater Rising
      "Spitting Games" by Snow Patrol
      "Wrecking Ball" by Viva Voce
      "Broken" by Hathaway
      "Heaven" by The Fire Theft
      "Love In December" by Club 8
      "Everybody Hurts" by Dashboard Confessional


    • Episode Title: How Can You Be Sure?

      How Can You Be Sure? is the title to a song off Radiohead's single, Fake Plastic Trees and it can also be found on the Japanese version of The Bends.