Castle has been watching her for weeks, how she seems to be radiantly glowing, how she seems to be more tired than usual. He sees her throwing up one morning and he knows, he knows that she thinks she just has the stomach flu, or food poisoning. But he thinks he knows the real reason, he just doesn't know how to bring it up.
He wakes up one morning, early, not understanding to why he is waking up at 6am. She has the day off today, well, as long as no new cases come in. This means that he should be writing, and shouldn't be up for another few hours. "Ughh." He hears her groan nearly immediately after he sees that she isn't in bed. Perhaps that's why he woke up, he thinks to himself, The absence of her body next to his. '
He suspects that he'll find her over the toilet, and he discovers he is right as he opens the half open door. Castle looks over at her, leaning against the doorframe. Beckett has one hand over the doorframe as if trying to keep her stomach contents in, and one hand attempting to pull her hair out of her face. "Kate?"
"I'm fine, Castle." She says to him. She didn't even look back at him, which is how she knows that she really isn't okay. He goes over to her, pulling her hair out of her face and planting a kiss on her cheek.
"Let me take you to the doctor." He says. He's been saying this for several days, since she started throwing up about a week ago. He hasn't told her why he really wants to take her to the doctors, because he knows she'd just deny it, but he figures maybe it's about time for him to bring it up.
"No, I'm fine, Castle, it's just the stomach flu. I'll be fine." And with that, she throws up in the toilet once again. He holds her hair back and realizes that if what he suspects this is true, then this will be a part of their future for a bit of time. But he knows that as much as he hates to see her throwing up, hates to see her totally exhausted, that it would all eventually be worth it.
"Just…let's go and find out for sure."
"I mean, what else could it be, Rick?" She turns to face him, looking sickly, yet still beautiful to him. He didn't think there could ever be a day or a moment where she wasn't the most gorgeous woman in the room. He just loved every bit of her, and couldn't believe he had ever been married to anyone else.
He took a deep breath, knowing that he'd need to tell her now, what he'd been thinking for a couple months now. He put a hand on her cheek, trying to work up the courage. On the count of one, two, three, "Could you be pregnant?"
Beckett, who was feeling a bit better now, stood up quickly. She hadn't even thought about the possibility of being pregnant. I mean they'd had sex, of course, several times. They were married after all. But they had agreed that they wouldn't start thinking about kids for another year or two. They'd been married for only a bit more than a month. "What? No! I'm on birth control."
She'd know if she was pregnant, right? And suddenly, she was very scared, and very dizzy. Maybe it was from standing up too fast, but the room was spinning. She grabbed onto the sink, having to close her eyes for a moment. "Beckett?"
Castle placed an arm around her supportively, worried about her. She opened her eyes and looked at him, starting to think. How long had it been since her last period? She'd been stressed out about the last case, and even though they wrapped it up a few days ago, she hadn't thought about her period in a while. Certainly not long enough to realize that she was about two weeks late.
She leaned against him. "I'm two weeks late, Castle." She hated to tell him that he might be right, but she knew that he definitely could be about this. And at this moment, she wasn't sure what to think about it. She wasn't sure if she was ready to be a mom yet. The thought terrified her.
He rubbed her shoulder supportively, "Let me take you to the doctor, Kate."
She didn't have time to answer before she became nauseous again, throwing up once again, barely leaning over the toilet in time. He smoothed her hair back once again, hoping that he could keep her hair clean of any vomit.
Feeling slightly miserable, and slightly in shock, she turned to him. "Okay."
A/N: So there's this fabulous tumblr that gave me the idea for this fanfic. It's called castlefanficprompts. It's an awesome blog run by the person who runs castlefanfics. So yeah, shoutout to the anon who suggested a Castle fanfic where Castle discovers that she is pregnant before she does. J Anyway, my tumblr is notalonedarling. If you like this fanfic, please comment that you'd like an additional chapter. Also maybe check out my other Castle fanfic entitled "Something About Life"