Could Bernadette's Baby Ruin Shamy's Big Anniversary Plans in the 'Big Bang Theory' Winter Finale?

The winter finale of The Big Bang Theory is going out with a bang! Bernadette and Howard will welcome Baby Wolowitz this Thursday night—and even though we know the gender and name, we’re not going to reveal it here (but come back to Glamour.com after the episode airs to find out everything). The birth coincides with the second anniversary of the first time Sheldon and Amy had coitus, which means Shamy fans are in for a real treat—as well as the unexpected. And here’s another teaser: If you’re a Harry Potter fan, you definitely won’t want to miss a minute of the episode.

To get more scoop on what’s to come for our favorite gang of misfits, we went straight to executive producer Steve Molaro to get the lowdown. What will happen to Sheldon’s spot on the couch now that he’s moved out? What’s the real story behind the apartment switch? And will a Shamy engagement happen before season’s end? All your questions are finally about to be answered.

Glamour: OK, lets jump right in: Penny’s apartment. Although I guess it’s not Penny’s apartment anymore because Sheldon and Amy are living there. To be honest, I don’t know what the hell we call it now.

Steve Molaro: Ugh! You [don’t know what to call it]? I don’t know what to call it! Every script, I still can’t…when we’re writing these scripts, I still can’t let the sluglines change. So even though the changes have happened, at least in our scripts, it’s Sheldon and Leonard’s apartment in one slugline, and Penny’s apartment is another. It still says that in the scripts even though Sheldon and Amy are living in Penny’s apartment. I just can’t bring myself to see the word “Sheldon and Amy’s apartment.” It’s freaking me out! [Laughs] I went through this also with Mrs. Wolowitz’s house, and it took me two years to just let it say Wolowitz’s house.

Glamour: In this Thursday’s episode, it’s the first time we’re seeing Penny’s bedroom redecorated, right? Because that threw me for a total loop.

Steve: [Laughs] Yeah.

Glamour: When Sheldon/Amy and Leonard/Penny first did the apartment experiment, Sheldon said he wanted to do it in a neutral place. Now that he and Amy know they can live together, wouldn’t it be easier to just have Sheldon go back to his place and Amy move in there?

Steve: I think that’s a fair point, but I think Sheldon is ultimately a creature of habit. He was uncomfortable with this whole thing [originally], but he did it and stood behind it. I think his feeling is don’t make me change again, this is working, let’s just keep doing this.

Glamour: What will happen to the couch and his spot if it doesn’t move with Sheldon?

Steve: It’s always his spot. It doesn’t matter if he lives there or not. The couch is going to stay where it is, and that is always going to be his spot even though he’s across the hall. I think that’s one of the strands of glue that helps keep—even though this change happened, it will always feel like The Big Bang Theory. One of the most important things is that couch is in that living room and that couch is Sheldon’s spot. I don’t want that to ever change.

Glamour: Thursday’s episode is obviously leading up to the anniversary of Shamy having coitus for the first time. What more can you say?

Steve: It’s Amy’s birthday. Sheldon is aware and wants her to have a wonderful birthday. He’s not only armed with a lovely gift that he has acquired for her, but he is aware and ready for birthday coitus number two, and Bernadette going into labor will start to get in the way of those birthday plans. Anytime we’re doing a milestone episode in the series, it tends to be a little more tense because we want to do an extra good job. A stressful blast is how I will phrase it. [Laughs]

Glamour: I don’t know if you read my theories, but…

Steve: OK, tell me…

Glamour: Well, I wrote a few weeks ago that it seems like Sheldon and Amy are on the road to an engagement, especially since you told me at the start of the season that the engagement ring was still floating around. Also, after all this time of seeing Amy pine for Sheldon, it really does seem in the last year that Sheldon has caught up to Amy, at least in expressing his love by communicating it more to her.

Steve: In his own way…

Glamour: Right, and not that we doubted this was the real thing, but it’s nice to see Sheldon more on board and willing to really be a couple. So, I was thinking this was laying the groundwork for an eventual engagement by season’s end. Am I totally off base here?

Steve: I can’t tease anything! [Laughs] I can say that everything you’re saying about their relationship is true, and he’s still weird and awkward and holding back; they’re still taking baby steps, but he’s trying. I think whenever he’s trying, it’s super cute and charming. We really do like to let these things happen organically. I don’t want to make you sad, but there is no secret notebook with a master plan of when the ring will come back into play. We really had no idea Bernadette was going to be pregnant until it happened. I think an engagement for Sheldon and Amy is going to fall in that basket, too. I want to feel as surprised as Amy or Sheldon does when it happens, so I like that we have the freedom to just let it happen when it happens, and that’s the real plan.

Glamour: By the way, we have to talk about the motorized Stephen Hawking toy from a few episodes back. Who came up with that and where is it?

Steve: I’m supposed to have it. I thought of it, and we all knew that it was…it was a fun thing, but it could also be seen as in poor taste. I think we were a little worried about it—but at the same time, why shouldn’t he have a toy, an action figure? I have mixed feelings about it, but I think we honored those mixed feelings in the story where Wolowitz thought it was great and everyone was like, “I don’t know if you should have a guy in a wheelchair rolling around like that.” For what it’s worth, Stephen Hawking himself was completely on board with the whole story and was happy to play along with us. And thank you for reminding me—I do need that thing in my office. It’s in the props room right now, and I keep seeing it and thinking, “Why is that not in here?”

The winter finale of The Big Bang Theory airs this Thursday on CBS at 8 P.M. ET. Stay tuned for an exclusive interview from Mayim Bialik that morning and an another interview with Steve Molaro immediately after the show airs!